Political systems essays

Political systems essays In large societies existing in the world today, there are many different opinions when it comes to political decision-making. There have been many different political systems in the past. There exist two extreme positions. The Athenian democracy is a system in which all the citizens of an area participate in making decisions. One alternative to the Athenian democracy is the elite or absolute rule; a system in which there is one person who makes decisions for the country, hopefully in the countrys best interests. An alternative political system between the two extremes is the representative democracy in which you get to vote on the political party you would like to represent you. In a way this system leaves decision making up to professional groups of people, but still gives the people of the country some control over decisions made. The political party voted into power is given the right to make decisions for the country; if the citizens of the country wish to vote for another party, they may do so in the next election. Different societies in the world today believe that one system is the rational and politically correct one. A certain group of people might argue that an absolute ruler gives no political rights to its citizens, and it leaves the country open to corruption. This group may not support an Athenian Democracy because it is inefficient in societies today, because the societies are simply too large. Too much time would be spent deciding which goals and approaches to take. This would leave very little time to achieve these goals. The same society may support a Representative Democracy because they believe it is the only way to divide the power between Citizen and State fairly. A representative democracy is the best political system for all countries in the world today. A very controversial system still used today is the Absolute Monarchy. An absolute or elite ruler makes all the countrys decisions, for better or ...

How the Meiji Restoration Ended Shogunal Rule in Japan

How the Meiji Restoration Ended Shogunal Rule in Japan The Meiji Restoration was a political and social revolution in Japan from 1866 to 1869 that ended the power of the Tokugawa shogun and returned the Emperor to a central position in Japanese politics and culture. It is named for Mutsuhito, the Meiji Emperor, who served as the figurehead for the movement. Background to the Meiji Restoration When Commodore Matthew Perry of the U.S. steamed into Edo Bay (Tokyo Bay) in 1853 and demanded that Tokugawa Japan allow foreign powers access to trade, he unwittingly started a chain of events that led to Japans rise as a modern imperial power. Japans political elites realized that the U.S. and other countries were ahead in terms of military technology, and (quite rightly) felt threatened by western imperialism. After all, mighty Qing China had been brought to its knees by Britain fourteen years earlier in the First Opium War, and would soon lose the Second Opium War as well. Rather than suffer a similar fate, some of Japans elites sought to close the doors even tighter against foreign influence, but the more foresighted began to plan a modernization drive. They felt that it was important to have a strong Emperor at the center of Japans political organization to project Japanese power and fend off Western imperialism. The Satsuma/Choshu Alliance In 1866, the daimyo of two southern Japanese domains- Hisamitsu of Satsuma Domain and Kido Takayoshi of Choshu Domain- formed an alliance against the Tokugawa Shogunate that had ruled from Tokyo in the Emperors name since 1603. The Satsuma and Choshu leaders sought to overthrow the Tokugawa shogun and place the Emperor Komei into a position of real power. Through him, they felt that they could more effectively meet the foreign threat. However, Komei died in January 1867, and his teenaged son Mutsuhito ascended to the throne as the Meiji Emperor on Feb. 3, 1867. On Nov. 19, 1867, Tokugawa Yoshinobu resigned his post as the fifteenth Tokugawa shogun. His resignation officially transferred power to the young emperor, but the shogun wouldnt give up actual control of Japan so easily. When Meiji (coached by the Satsuma and Choshu lords) issued an imperial decree dissolving the house of Tokugawa, the shogun had no choice but to resort to arms. He sent his samurai army toward the imperial city of Kyoto, intending to capture or depose the emperor. The Boshin War On Jan. 27, 1868, Yoshinobus troops clashed with samurai from the Satsuma/Choshu alliance; the four-day long Battle of Toba-Fushimi ended in a serious defeat for the bakufu and touched off the Boshin War (literally, the Year of the Dragon War). The war lasted until May of 1869, but the emperors, troops with their more modern weaponry and tactics, had the upper hand from the start. Tokugawa Yoshinobu surrendered to Saigo Takamori of Satsuma and handed over Edo Castle on April 11, 1869. Some of the more committed samurai and daimyo fought on for another month from strongholds in the far north of the country, but it was clear that the Meiji Restoration was unstoppable. Radical Changes of the Meiji Era Once his power was secure, the Meiji Emperor (or more precisely, his advisors among the former daimyo and the oligarchs) set about refashioning Japan into a powerful modern nation. They: Abolished the four-tiered class structureEstablished a modern conscript army that used Western-style uniforms, weapons, and tactics in place of the samuraiOrdered universal elementary education for boys and girlsSet out to improve manufacturing in Japan, which had been based on textiles and other such goods, shifting instead to heavy machinery and weapons manufacturing. In 1889, the emperor issued the Meiji Constitution, which made Japan into a constitutional monarchy modeled on Prussia. Over the course of just a few decades, these changes took Japan from being a semi-isolated island nation threatened by foreign imperialism, to being an imperial power in its own right. Japan seized control of Korea, defeated Qing China in the Sino-Japanese War of 1894 to 95, and shocked the world by defeating the Tsars navy and army in the Russo-Japanese War of 1904 to 05. Blending Ancient and Modern to Build Anew The Meiji Restoration is sometimes characterized as a coup detat or revolution ending the shogunal system for modern Western governmental and military methods. Historian Mark Ravina has suggested that the leaders who created the events of 1866–69 did not do so only to emulate Western practices but also to restore and revive older Japanese institutions. Rather than a clash between modern and traditional methods, or between Western and Japanese practices, says Ravina, it was the result of a struggle to bridge those dichotomies and create new institutions that could evoke both Japanese uniqueness and Western progress.   And it didnt happen in a vacuum. At the time a global political transformation was underway, involving the rise of nationalism and nation-states. The long-established multi-ethnic empires- Ottoman, Qinq, Romanov, and Hapsburg- were all deteriorating, to be replaced by nation states who asserted a specific cultural entity. A Japanese nation-state was seen as vital as a defense against foreign predation. Although the Meiji Restoration caused a lot of trauma and social dislocation in Japan, it also enabled the country to join the ranks of world powers in the early 20th century. Japan would go on to ever greater power in East Asia until the tides turned against it in World War II. Today, however, Japan remains the third largest economy in the world, and a leader in innovation and technology- thanks in large part to the reforms of the Meiji Restoration. Resources and Further Reading Beasley, W.G. The Meiji Restoration. Stanford University, 2019.Craig, Albert M. Choshu in the Meiji Restoration. Lexington, 2000.Ravina, Mark. To Stand With the Nations of the World: Japans Meiji Restoration in World History. Oxford University, 2017.Wilson, George M. â€Å"Plots and Motives in Japans Meiji Restoration.† Comparative Studies in Society and History, vol. 25, no. 3, July 1983, pp. 407-427.

Individual Project - Tanglewood Essay Example | Topics and Well Written Essays - 2500 words

Individual Project - Tanglewood - Essay Example In addition they become aware of the challenges that Tanglewood has gone through. In this way, they will have the ability to deal with any challenge that they may face during their duties. Tanglewood case indicates that there is inconsistency in terms of management between styles between the new stores and the original stores. Thus, the company should also employ the acquisition strategy that will ensure that the new stores start on the correct path without the resistance of the managers or resentment from the workers. The expansion strategies by Tanglewood require that it accumulates adequate funds without lowering the salaries of its employees. The company should therefore adopt techniques that will ensure that it does not use a lot of funds outside the company. Thus, it is imperative for the company to hire itself instead of outsourcing. The only part that the company should outsource is in the construction of the stores. This is based on the fact that if the company creates its own construction and engineering department, it would an expensive venture. This is due to the high costs of such a department in the form of high salaries, high costs of purchasing constructing machines as well as costs of computer programs used to come up with the architectural designs. By hiring itself in other areas, Tanglewood will ensure that it uses reduced financial resources that will generate significant revenue needed in undertaking other operations of the firm. In addition, by hiring its own resources, the c ompany will effectively deal with its own challenges since it is aware of their causes and the best person to deal with an emerging issue in the company. However, outsourcing has several advantages that include providing new ideas, new techniques of performing duties as well as new ways of solving management problem that the company can face. In his effort to hire qualified personnel, the vice-president for human resources should

The Bank of the Elena on Request of Don Research Paper

The Bank of the Elena on Request of Don - Research Paper Example Being one of the popular and important international commercial terms, ‘FOB’ is used very widely in international commercial transactions. ‘FOB’ is one of the F group terms denotes ‘Free on Board’ where the element of freight is undertaken to be paid by the buyer and the risk on the goods is deemed to pass to the buyer at the point where the goods are delivered to the specified carrier. The term FOB was originally developed with an intention to specify the responsibilities and liabilities of the parties under the contract. In the case of Pyrene v, Scindia three different variations of the FOB Contracts have been established. As a consequence in a FOB contract if the buyer fails to advise his nomination of a specific vessel within the time stipulated under the contract can be terminated by the seller. With this repudiation of the contract, the seller reserves the right to sell the goods to any other third party and also to recover any resultant l oss from the buyer. FOB is being used as one of the important commercial terms for the past two centuries and because of the familiarity traders do not wish to use other terms while formulating the sales contracts. However, this has resulted in using the term FOB wrongly as FOB Factory or FOB Plant which is an incorrect usage as stated by the International Chamber of Commerce According to the Chamber the term implies only ‘Free on Board’. Thus under the FOB contract, the seller need only to place the goods on board the ship which is nominated by the buyer. However as specified in Para B7 of Incoterms 2000, the buyer is obligated to give the seller sufficient notice of the vessel he has nominated.

Student Essay Example for Free

Student Essay Art is one of many ways of communication. Art is used to express feelings or to deliver a message to a viewer. It is also used to leave a record of things that happened during the time the artwork was created. Ancient artwork usually talks about religious practices, spiritual beliefs or even their dependence on nature for survival whereas 21st century street artwork are usually personal opinions on something such as politics, action done by someone or new law. It also contains the artist’s feeling of the time the artwork was created. Every street artists of the 21st century has different styles whereas ancient artists used similar (close to same) styles. Creative Purpose†¦. Fig. 1, Elderly Woman, Street Art London, 2011 Fig. 1, Elderly Woman, Street Art London, 2011 The ancient artworks, in this case, ancient Egyptian art, were used to keep record of achievements, spiritual beliefs and spiritual practices. Most of the spiritual practices were practices of mummifying dead bodies, believing that the soul from the dead body will go to either heaven or hell. Ancient Egyptians believed in afterlife quite heavily. Most of the ancient Egyptian kings (Pharaohs) were mummified due to this belief. Furthermore, many of the ancient Egyptian artworks have Gods in them. There are Gods for certain things such as God of the Sun and God of Death. However, the 21st century street art is more of expressing the artist’s feelings and commenting on certain things such as politics. For example, there is a famous street artist who lives in Paris, France, who has a nickname called ‘C215’ (real name is Christian Guemy). His artworks usually have people involved in them. However, his artworks are not just about normal people but people like beggars, elderly people, refugees and street kids because he is ‘obsessed’ with making an artwork of them, artwork of people who grew up in streets and lived in streets. He said, â€Å"I paint mostly tramps, refugees and street kids, people who really live the experience of the street and to whom the  street art  is almost never intended. † Visual Character†¦. Fig. 2, Ancient Egyptian Art, Tutt’ Art, 2011 Fig. 2, Ancient Egyptian Art, Tutt’ Art, 2011 Ancient Egyptian artworks often have people and Gods with appearances with human in them. The people in the ancient Egyptian artworks have their arms and shoulders positioned facing the front while their faces are facing the side, along with their legs and hips. The artworks of ancient Egypt are very symbolic. They have many meanings in the artwork, especially when it talks about spiritual practices and beliefs. Sometimes, they also have writings around or in the artwork. It probably could be understood by many other cultures except for those cultures wit completely different beliefs. However, street arts are understood by nearly everyone in the world as they have similar beliefs and religions. When it Fig. 3, Smiling Refugee, Street Art London, 2011 Fig. 3, Smiling Refugee, Street Art London, 2011 comes to personal comments on politics, it may be hard for some people to understand. The 21st century street artworks are very stylized, having different themes and styles for every street artists, except for those street artists who only leave their names or nicknames on walls. Theses can be seen as mess on the wall because it has no meaning in it. A street artist called ‘C215’ has very colourful style. This artist is told to be realistic but stylized. C215 describes the facial expressions of the main characters in his artworks very precisely to deliver a hidden message behind the art piece. As shown Fig. 4, Street Kid, Street Art London, 2011. Fig. 4, Street Kid, Street Art London, 2011. in figure one, three and four, he describes the facial expressions of elderly woman, refugee and a ‘street kid’ very precisely. Also, famous street artists often leave their special ‘logo’ somewhere in the artwork. For instance in figure four, a ‘logo’ for C215 can be seen next to the face. Medium and Technique†¦. Most of the common ancient Egyptian artworks were painted with paints made of mixed pigments with gum, which were the basic colours. Before papyrus leaves were used as papers, the paintings were often done on walls, which were sometimes carved in. These kinds of techniques were used in ancient Egyptian times because the actual paints and paintbrushes weren’t properly developed. Today, many kinds of tools and styles can be used. For example, C215 usually used stencils to paint on street walls. He makes a background on the wall either free hand or painted using stencils, and then puts his main character in the background. He either uses spray paints or paints and paintbrushes, but mostly, spray paints. It shows his personal style and it helps him to paint precise parts of painting such as facial expressions. Personal Response†¦. I think that every kind of art has one thing common in them; the artist’s feeling and expression of the time he/she created the artwork. If there is a slight difference between ancient Egyptian art and the 21st century street art, I have go to say that the artworks from ancient Egypt do not have sense of depth and they were all dull whereas 21st century street art has wide range of colours being used and vibrant. Most people will find street art more attractive than ancient Egyptian art as street art has different styles and they are very vibrant. Conclusion†¦. To sum up, ancient Egyptian art has many meanings for spiritual beliefs and practices. It was very symbolic as it represented human by its body parts, so the head is facing the side, shoulders and arms are facing the front and shoulders and arms are facing the side. It is mostly painted with basic colours that are made of mixed pigments and gum. On the other hand, graffiti is more like expressing a personal opinion on certain thing. It has many themes and styles along with many choices of colours. Almost everyone can understand street art. Furthermore there are many ways to paint for street art and one of many ways is stencils and paints.

Epic of Beowulf :: Epic of Beowulf Essays

  Ã‚  Ã‚  Ã‚  Ã‚  It is common opinion that Beowulf was written by a Christian poet. This was probably true because at the time when it was written, most of the few people who knew how to read and write were in the clergy. There are various references within the poem to elements of the Christian religion. However, the story is about Pagan people and certain aspects of their culture are even glorified. The ambiguity of Beowulf’s religious content has caused confusion as to what significance religion had in inspiring the author and in what manner the author meant to inspire or influence his audience. I do not think that Beowulf is a Christian allegory because Beowulf had very little in common with the Biblical figure of Jesus Christ. I think that religion was not the primary thematic concern of the writer. Although there are discrepancies between the two styles of thinking, Beowulf seems to praise values which were considered moral and good among all humanity, both Christian and Pagan.   Ã‚  Ã‚  Ã‚  Ã‚  The text of Beowulf clearly shows that at some point in time Biblical allusions were added to it, and suggests that someone learned in Christianity helped shape the story. The initial depiction of Grendel regarded the beast as â€Å"a fiend out of hell,† and claimed, â€Å"†¦he had dwelt for a time in misery among the banished monsters, Cain’s clan, whom the Creator had outlawed and condemned as outcasts.† References to hell, Cain, and â€Å"the Creator†, make it evident that Christian elements were present in the story. More importantly, the reference to â€Å"the Creator† shows that monotheistic theory was incorporated into the text. Grendel’s relationship to this â€Å"Creator† is further elaborated on, in which case the author refers to the latter as â€Å"Eternal Lord†, â€Å"Almighty†, and â€Å"God.† All four of which are common ways to refer to the individual Christian God, and were capitalized as would have been in the Bible.   Ã‚  Ã‚  Ã‚  Ã‚  These allusions to Christian faith could lead a critic to assume that Beowulf is a Christian allegory. Critics who read the poem in this way often call Beowulf a Christ figure because he is a savior to his people. However, if the poem was really meant to be read in this way, I think that Beowulf would have been ultimately triumphant and would have survived his fight with the dragon. I do not claim to be a Biblical scholar but I can not remember any stories from the Bible where Christ did any killing or boasting.

Sauna pants

The pants are simple to wear with adjust-ability in waists and thighs but still, since it has limited sizes to fit all types of body shape for both men and women, there are complaints grading inconvenience among users' reviews. You have the option to dial your desired temperature, but by sacrificing the moving-around due to the 4- inch cord. On the other hand, it is guaranteed 100% money back in 90 days after purchase for the relatively reasonable price $29. 99 – $39. 95 (compared to a standard sauna normally around $40-$60).No matter how promising this product may sound, if you wish to lose real weight this is not a desirable equipment. One deficiency is no clinical test or patent being mentioned; hence, skin irritations or other health-related problems like infertility are upon your own risk. Like how the claim ingeniously claims, the user just gets rid of some extra water weight, a small amount of weight that will be easily gained back during a re-hydration session. No musc le workouts or any kind of physical activities is needed while the real weight loss plan lies in the reduction of fat volume, leaving muscle and water remained.Same heating mechanism to accelerate water weight loss, we have another apparel item, the sauna suit. Unlike the sauna pants, the sauna suit â€Å"features high insulation and low water vapor permeability, due to the thickness and the lit-layered fabric design†, then serves as a major physiologic defense against overheating through sweating during vigorous physical activity, which makes it by far a more effective product in support of weight loss according to a research about sport bra and integral fitted sauna suit.Regarding the warm, relaxed treatment for soothing sore joints or tight muscles, it is just a temporarily relieved feel due to the heat, which a light intensity of exercise or a heating pad can do the same with far lesser cost. Legend the discussed understandings, would not use it for the sake of losing wei ght, nor commend it to anyone. This product is no use in any perspectives, also promotes laziness towards work-outs and unrealistic crave for healthy well- being with no effort.

Online safety

Online safety is an important activity that is a must for every small, medium and multinational company. There are many web tools available that screen the net hackers and bad guys. Below every web site there is a privacy statement which authenticates that the visitor must comply with the terms and conditions of web site that it will not be used for any illegal purposes. Similarly there is a possibility of fraudulent transactions by entering fraud credit and debit card numbers which creates chaos and revenue for online businesses. For preventing all these unforeseen hurdles, online companies delivery goods only after the credit /debit card payment is received which is safe and secured transaction. Google Hack Honeypot (GHH) is a web tool for tracking net hackers that is launched by Google company. Google being a billion dollar multinational company, and the web site google. com is used by millions of internet users who seek information and in the year 2005, Google recorded 8 billion pages and from the view point of Google company, tracking of net hackers with malicious intentions is essential in order to counterattack. Similarly for the online safety of consumer, U. S Government has also passed several policies that individual companies must issue formulas to ensure customer privacy online and customer information must be kept confidential and should not be easily accessed by any other company web sites. Conclusion Good use of technology, breeds good results whereas illegal works have to be tracked as damage is caused to the public as well to businesses. Therefore, authentication and SSL have to be served at every level for ensuring safety and security of information of companies.

Determining Databases and Data Communications Essays (1013 words)

Determining Databases and Data Communications Essays (1013 words) Determining Databases and Data Communications BIS/320 Determining Databases and Data Communications Scenario 1 You need to track data about booth components, equipment, shippers, and shipment. List typical fields for each type of data. Provide an example of two relationships that you need to track. In order to describe fields for each type of data it is first important to understand just what a field is in this context. According to Techopedia (2015), when describing databases a field is a set of data values within a table which define data. An example of fields relating to the booth components data may include a list of the components included in the booth as well as information relating to whether the components were shipped out in use or in stock at the office. Additionally fields relating to the date of shipment may also be included. Like the booth components, fields describing each piece of equipment may be used. Fields relating to the location of the equipment as well as the date shipped are also important. Fields relating to the shippers data may include the name of the person as well as the date shipped. There could also be a field containing information as to whether the items shipped were damaged when in the shippers care. Similarly the shipment data could include fie lds describing what is included in the shipment as well as the name of the person performing the shipping. Additionally, the date and quality of shipment could also be included. One example of a relationship that may need to be tracked is that between shipper and shipment. Each shipper could possess a designated number that could then be used in the shipment table to identify who is performing the shipment. This allows for easy identification of who is shipping the equipment. Additionally, each piece of equipment could be labeled with a unique identification number that could be used relationally in the shipment table. When looking at the shipment table both the equipment and shipper are easily identifiable. This allows easy tracking of all necessary information pertaining to the shipment. Do you need a database system? If not, can Excel handle the data and the output? What are the advantages and disadvantages? While Excel could be used for storing data pertaining to scenario 1, a database system would provide a more in-depth description of what is happening. A database system is also advantageous because it provides the ability to sync information from multiple tables and sources. Ultimately, Excel could handle the input of data but would not produce the output of data and information. Kroenke (2014) states, lists of data involving a single theme can be stored in a spreadsheet; lists that involve data with multiple themes require a database (pg. 108). Excel possesses many advantages including the ability to more easily and quickly enter and manipulate data. However, the output of information received from Excel is very limited. This information is more black and white than the information retrieved from databases. Utilization of databases is advantageous due to the wealth of knowledge received from the manipulation of data. However, databases are often more complicated and require more time and ability for utilization. Would you use a personal database or an enterprise database? Explain your answer. While an enterprise database would allow multiple users and provide numerous additional features, a personal database is sufficient for scenario 1. This is because the marketing assistant is in charge of all aspects of managing the trade shows. For this reason, a personal database should provide the capabilities needed to organize and manage the task of tracking and managing equipment. However, limited details are provided, if the marketing assistant were constantly collaborating with and sharing this information with multiple coworkers an enterprise database system would become more appropriate. Would a decision support system (DSS) be helpful? Explain your answer. A well-designed DSS aids decision makers in compiling a variety of data from many sources: raw data, documents, personal knowledge from employees, management, executives and business models ("Decision Support System," 2015). Regardless of whether utilizing a personal database or enterprise database a decision support system could provide help. One example of how this system could provide help in scenario 1 is through identifying shippers who repeatedly

Confidence Interval for the Difference of Two Population Proportions

Confidence Interval for the Difference of Two Population Proportions Confidence intervals are one part of inferential statistics.   The basic idea behind this topic is to estimate the value of an unknown population  parameter by using a statistical sample.   We can not only estimate the value of a parameter, but we can also adapt our methods to estimate the difference between two related parameters.   For example we may want to find the difference in the percentage of the male U.S. voting population who supports a particular piece of legislation compared to the female voting population. We will see how to do this type of calculation by constructing a confidence interval for the difference of two population proportions.   In the process we will examine some of the theory behind this calculation.   We will see some similarities in how we construct a confidence interval for a single population proportion as well as a confidence interval for the difference of two population means. Generalities Before looking at the specific formula that we will use, lets consider the overall framework that this type of confidence interval fits into.   The form of the type of confidence interval that we will look at is given by the following formula: Estimate /- Margin of Error Many confidence intervals are of this type. There are two numbers that we need to calculate.   The first of these values is the estimate for the parameter.   The second value is the margin of error.   This margin of error accounts for the fact that we do have an estimate.   The confidence interval provides us with a range of possible values for our unknown parameter. Conditions We should make sure that all of the conditions are satisfied before doing any calculation. To find a confidence interval for the difference of two population proportions, we need to make sure that the following hold: We have two simple random samples from large populations.   Here large means that the population is at least 20 times larger than the size of the sample. The sample sizes will be denoted by n1 and n2.Our individuals have been chosen independently of one another.There are at least ten successes and ten failures in each of our samples. If the last item in the list is not satisfied, then there may be a way around this.   We can modify the plus-four confidence interval construction and obtain robust results.   As we go forward we assume that all of the above conditions have been met. Samples and Population Proportions Now we are ready to construct our confidence interval.   We start with the estimate for the difference between our population proportions. Both of these population proportions are estimated by a sample proportion.   These sample proportions are statistics that are found by dividing the number of successes in each sample, and then dividing by the respective sample size. The first population proportion is denoted by p1.   If the number of successes in our sample from this population is k1, then we have a sample proportion of k1 / n1. We denote this statistic by  pÌ‚1.   We read this symbol as p1-hat because it looks like the symbol p1 with a hat on top. In a similar way we can calculate a sample proportion from our second population.   The parameter from this population is p2.   If the number of successes in our sample from this population is k2, and our sample proportion is   pÌ‚2 k2 / n2. These two statistics become the first part of our confidence interval. The estimate of p1 is pÌ‚1.   The estimate of p2 is pÌ‚2.   So the estimate for the difference p1 - p2 is pÌ‚1 - pÌ‚2. Sampling Distribution of the Difference of Sample Proportions Next we need to obtain the formula for the margin of error.   To do this we will first consider the   sampling distribution of   pÌ‚1  . This is a binomial distribution with probability of success p1 and  n1 trials. The mean of this distribution is the proportion p1.   The standard deviation of this type of random variable has variance of p1  (1 - p1  )/n1. The sampling distribution of pÌ‚2 is similar to that of pÌ‚1  .   Simply change all of the indices from 1 to 2 and we have a binomial distribution with mean of p2 and variance of p2 (1 - p2 )/n2. We now need a few results from mathematical statistics in order to determine the sampling distribution of pÌ‚1 - pÌ‚2.   The mean of this distribution is p1 - p2.   Due to the fact that the variances add together, we see that the variance of the sampling distribution is p1  (1 - p1  )/n1 p2 (1 - p2 )/n2.   The standard deviation of the distribution is the square root of this formula. There are a couple of adjustments that we need to make.   The first is that the formula for the standard deviation of pÌ‚1 - pÌ‚2 uses the unknown parameters of p1 and p2.   Of course if we really knew these values, then it would not be an interesting statistical problem at all.   We would not need to estimate the difference between p1 and  p2..   Instead we could simply calculate the exact difference. This problem can be fixed by calculating a standard error rather than a standard deviation.   All that we need to do is to replace the population proportions by sample proportions.   Standard errors are calculated from upon statistics instead of parameters. A standard error is useful because it effectively estimates a   standard deviation.   What this means for us is that we no longer need to know the value of the parameters p1 and p2.   .Since these sample proportions are known, the standard error is given by the square root of the following expression: pÌ‚1 (1 -  pÌ‚1 )/n1   pÌ‚2 (1 -  pÌ‚2 )/n2. The second item that we need to address is the particular form of our sampling distribution.   It turns out that we can use a normal distribution to approximate the sampling distribution of  pÌ‚1  - pÌ‚2.   The reason for this is somewhat technical, but is outlined in the next paragraph.   Both   pÌ‚1 and   pÌ‚2   have a sampling distribution that is binomial.   Each of these binomial distributions may be approximated quite well by a normal distribution.   Thus pÌ‚1  - pÌ‚2 is a random variable.   It is formed as a linear combination of two random variables.   Each of these are approximated by a normal distribution.   Therefore the sampling distribution of pÌ‚1  - pÌ‚2 is also normally distributed. Confidence Interval Formula We now have everything we need to assemble our confidence interval.   The estimate is (pÌ‚1 - pÌ‚2) and the margin of error is z* [ pÌ‚1 (1 -  pÌ‚1 )/n1   pÌ‚2 (1 -  pÌ‚2 )/n2.]0.5.   The value that we enter for z* is dictated by the level of confidence C.  Ã‚  Commonly used values for z* are 1.645 for 90% confidence and 1.96 for 95% confidence.   These values for  z* denote the portion of the standard normal distribution where exactly  C percent of the distribution is between -z* and z*.   The following formula gives us a confidence interval for the difference of two population proportions: (pÌ‚1 - pÌ‚2) /- z* [ pÌ‚1 (1 -  pÌ‚1 )/n1   pÌ‚2 (1 -  pÌ‚2 )/n2.]0.5

Give your own,, Essay Example | Topics and Well Written Essays - 3500 words

Give your own,, - Essay Example For this purpose the steps will be as follows; Step-1: Some of the erstwhile support staff will accompany Bridget to her new home and if possible try spending couple of hours or a day together with her in her new home. This will not only make her comfortable in the new environment, but will also assure her about the availability of easy help when she requires it in future. Step-2: While revisiting Bridget on the third day, an effort would be made to take note of her experience in the new surroundings, some of the problems that she faced or what made her happy in the new environment. It is worthwhile here to mention that these elaborations must be elicited from her in an informal manner, without letting her be conscious about the feedback. The support plan in this case must take into account the history of Bridget, her preferences etc. Bridget has suffered quite a lot in the past and she has many more years ahead for her. Therefore, the support plan must take a long term perspective of the issues with her. While reservations have been expressed about her coming to terms with the alcoholic abuse problem, the fact that she is being allowed to move back to her flat is an indication enough of her becoming a reformed citizen. Key aspects for her support plan are; Often people make use of alcoholic to get rid of tension, isolation and depressing tendencies. A schedule of activities like routine exercises, visit to market, phone call to the social worker, visit to the hostel etc. must be planned out for Bridget. This will keep her busy enough to take recourse to liquor. Purpose of such a schedule is to make sure that Bridget doesn’t come across circumstances like mood swings, involving periods of excessive euphoria or bouts of intense depression. Efforts must also be planned out to locate the whereabouts of her two kids, so that she gets to lead a normal life in times to come.