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

Maison Bouygues Assignment Example | Topics and Well Written Essays - 1500 words

Maison Bouygues - Assignment Example It is irrefutable that amidst the effort of companies to deliver the value which they have chosen to impart, there have been discrepancies with these two. The tactical aspect of marketing often does not fully embody what has been strategically formulated. In line with this, this paper looks at the value creation within MB, identifying the value that it chooses and how it provides this value to its clientele. At the end, this paper will give further recommendations on how value creation can be enhanced through the alignment of strategic and tactical marketing. As with any business organization, MB's strategic aspect of marketing is comprised of its segmentation, targeting, and positioning. The company's identification of the value that it wants to provide is rationally through identifying its customers and their specific needs and wants and specifically pinpointing what image the company wants to build in the mind of its customers. Among these client groups, the New Anxious represents approximately 25% of the company's customers. This segment, having the least income (average is FF12, 700), demands the most value for their hard-earned money for their first homes. It should also be noted that MB has a relatively high presence in this group indicated by the 138 MB presence index reported. The Wealthy Savers comes next with approximately 24% of MB's clientele. Directly opposed to the New Anxious, this group generates high income which averages FF18, 100 and have owned their previous homes. MB also has a high presence in this segment relative to the industry (MB presence index is 123). Autonomous Independents represents 19% of the MB's total market. Having an average income of $16, 500, this group occupies high social level and desires to own their home after renting for some time. Relative to its competitors, MB has a relatively low presence in this market indicated by MB's presence index which is reported at 53. Wealthy Spenders and New Responsible both share approximately 16% of MB's entire market. Wealthy Spenders have the highest average income at FF19, 700. However, MB's presence in this sector is only limited compared to the whole industry. New Responsible group has a low average income of FF14, 400 who demands more value and quality from MB's products because they would want to leave their house to their children. The company has a very high presence in this segment (MB's presence index is 123). The conducted market segmentation above clearly distinguishes the targeting strategy employed by MB. Furthermore, looking at the history of the company shows how it has alters and augments the particularly markets that it intended to serve: "Initially MB focused on building small, basic homes for middle and lower-income households. During the mid-1980s, the company shifted its focus to the higher end of the single family market." This shift in targeting strateg

Consumer Behaviour Market Analysis Report Essay

Consumer Behaviour Market Analysis Report - Essay Example Fast food products not prepared based on cultural norms cannot receive attention in the market. The paper also analyses the influence of stiff competition in the behavior of customers towards McDonald’s products. In the current food industry, multiplicity of competitors determines how consumers purchase McDonald’s products. Further, the paper discusses the health influences that affect the consumption fast food products in the global market. Fast foods rich in high sugar content and calories have been blamed for increased cases of diabetes and obesity. Table of Contents 1.0 Introduction†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦3 1.1 Cultural influences†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢ € ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦...3 1.2 Social influences†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦..4 1.3 Personal and economic influences†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦5 1.4 Health Influences†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦..5 1.5 Group Behavior†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦.6 1.6 Competition†¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢ € ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦...7 1.7 Conclusion †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦8 References †¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦Ã¢â‚¬ ¦......9 1.0 Introduction McDonalds is a fast food company with branches in all continents. Several restaurants operate under McDonald’s chain of restaurants. McDonald’s major target consumers include children, adults and teenagers in all their markets. Major markets for McDonald include the United States, Europe, India, and Sou th America. In the fast food industry, competition continues to affects several companies. Macdonald continues to improve their business strategies so that they can attract millions of customers into their business. Consumers continue to face new trends because competitors continue to be innovative in providing healthy food choices for customers. This report analyses consumerism at McDonalds. The report determines factors that motivate consumers to purchase fast food products from McDonalds. In addition, the Report analyses factors that may affect consumer’s ability to purchase fast food products from MacDonald. McDonald’s products include burgers, chicken, fish, deserts, and pork. These foods are classified as fast food products. McDonald’s prepares these foods because of their demand in the market. The society continues to demand ready-made food they can consume without preparing their own in the kitchen. McDonald’s also offers breakfast foods such as M cMuffins, breakfast sandwiches, fried egg, bacon and many more. Beverages are also offered in different varieties 1.1 Cultural influences According to Ramanuj (2010), external influences on consumer behavior involve cultural influences. McDonald’ provides fast food choices to consumers in various cultural backgrounds. In India, consumer buying behavior has been affected by the culture of customers. McDonalds provides beef and mutton burgers in India. However, according to Indian culture, consumers do not like food items made of beef and mutton from

Faulkner’s Exploration of the Human Spirit Essay -- Literary Analysis

William Faulkner accepted his Nobel Peace Prize in December 1950. During his acceptance speech, Faulkner proclaimed that the award was made not to him as a man, but to his life’s work, which was created, â€Å"out of the materials of the human spirit something which did not exist before† (PF ). He felt that the modern writer had lost connection to his spirit and that he must reconnect with the universal truths of the heart—â€Å"love and honor and pity and pride and compassion and sacrifice† (PF ). Through his characters voice and exposure of their spirit, Faulkner solidified man’s immortality by â€Å"lifting his heart, by reminding him of the courage and honor and hope and pride and compassion and pity and sacrifice which have been the glory of his past† (PF ). Although some critics have characterized his work as violet, dealing with immoral themes and the miseries and brutality of life; it can be argued that even his most sad and dep raved characters express positive virtues and personal strengths. The purpose of this paper is to discuss the portrayal and manifestation of the human spirit in a select few of William Faulkner’s literary characters, showing that they possess both human strength and flaws. So what is the human spirit and why is it significant? It is a somewhat indefinable concept. According to Faulkner the human spirit is the connection to the universal truths of the heart—â€Å"love and honor and pity and pride and compassion and sacrifice† (PF). But more than that, he was concerned with the idea that man had become oblivious to the problems of the spirit; that he lost his awareness of the inner struggle of heart in conflict with itself. The human spirit can also be described in terms of surviving adversity, adapting to c... ...lkner. Ed. Malcolm Cowley. New York: Penguin Books, 2003. Viking Press, 1946. Falkner, William. The Sound and the Fury. New York: Vintage Books, 1990. J. Cape & H. Smith, 1929. Gwynn, Frederick L. and Joseph L. Blotner, eds. Faulkner in the University: Class Conferences at the University of Virginia 1957-58. New York: Vintage Books, 1959. Howe, Irving. William Faulkner: A Critical Study. Chicago: Univ. Chicago Press, 1975.Orig. 1951. Vintage Books, 1962. Meriwether, James B. and Michael Millgate, eds. Lion in the Garden: Interviews with William Faulkner 1926-1962. New York: Random House, 1968. O’Donnell, George M. â€Å"Faulkner’s Mythology.† William Faulkner: Four Decades of Criticism. Linda W. Wagner, ed. East Lansing, MI: MSU Press, 1973. 83-93. Teske, John A. â€Å"The Social Construction of the Human Spirit.† http://users.etown.edu/t/teskeja/schs.html

Dostoevsky: Psychiatric Genius?

The book Crime and Punishment and its author, Fyodor Dostoevsky, both came many years before their time. In the book, Dostoevsky clearly describes the medical disorders we now know today as schizophrenia, bipolar disorder, and dissociative identity disorder which is also known as multiple personality disorder. The book was first published in 1866, however, schizophrenia was first described officially in 1887 by Dr.Emile Kraepelin and not given the name â€Å"schizophrenia† until Eugene Bleuler coined the term in 1911 (The History of Schizophrenia). And it was not until the late 19th and early 20th century that Pierre Janet coined the term dissociative identity (Pendergrast). Bipolar Disorder was also a relatively new disorder being that it was officially described in 1854 (â€Å"A Brief History of Bipolar Disorder†).The character of Raskolnikov is a good example of these three disorders because of the way he acts towards others or towards himself and then suddenly has a change of feelings or mindset. Schizophrenia is defined as a common type of psychosis, characterized by abnormalities in perception, content of thought, and thought processes (hallucinations and delusions) and by extensive withdrawal of interest from other people and the outside world, with excessive focusing on one's own mental life (WebMD LLC).In the beginning of the book, the narrator talks about how Raskolnikov has â€Å"become so completely absorbed in himself, and isolated from his fellows that he dreaded meeting, not only his landlady, but anyone at all† (Dostoevsky 1). This is the first sign of schizophrenia that Dostoevsky shows in Raskolnikov, it is obvious that Raskolnikov has become isolated and does not want to be around any other people. Next, Raskolnikov’s illness is almost completely caused by his hallucinations, delusions, and dreams.This is seen in part two, chapter one after Raskolnikov has committed the murders â€Å"He sat down on the sofa in exh austion and was at once shaken by another unbearable fit of shivering†¦he covered himself up with his winter coat and once more sank into drowsiness and delirium. † (92). This is also seen in chapter three after he returns to his room and has a dream about his landlady being beaten, â€Å"He was not completely unconscious, however, all the time he was ill; he was in a feverish state, sometimes delirious, sometimes half conscious. † (120).Raskolnikov continues to focus on his own mental state throughout the novel and he does not truly become well until the end of the story when he confesses, suffers, and becomes educated. Raskolnikov also has many symptoms of dissociative identity disorder, which is defined as a severe form of dissociation, a mental process, which produces a lack of connection in a person's thoughts, memories, feelings, actions, or sense of identity. Dissociative identity disorder is thought to stem from trauma experienced by the person with the dis order (WebMD LLC).Raskolnikov’s condition has obviously stemmed from the trauma Raskolnikov experienced after having committed the murders which is a major sign of dissociative identity disorder, and there are instances where Raskolnikov will do something and immediately completely regret his decision such as when he gives money to Marmeladov and then wants to go up to the room to take his money back â€Å"Raskolnikov had time to put his hand into his pocket, to snatch up the coppers he had received in exchange for his rouble in the tavern and to lay them unnoticed on the window.Afterwards, on the stairs he changed his mind and would have gone back† (Dostoevsky 26-27). Rakolnikov also has a form of dissociation because he gets into moods when he is thinking about certain things but disregarding other important details such as closing the door at the pawnbroker’s, locking his own door the night of the murder, and checking his clothes for blood. A third disorder t hat Dostoevsky describes through the character of Raskolnikov is bipolar disorder.Bipolar disorder is a major affective disorder, or mood disorder, characterized by dramatic mood swings. Bipolar disorder is a serious condition, when mania causes sleeplessness, sometimes for days, along with hallucinations, psychosis, grandiose delusions, and/or paranoid rage (WebMD LLC). Raskolnikov has many mood swings throughout the story. One of the first examples is when he is debating whether he should go talk to his friend Razumikhin, he changes his mind several times and then decides not to see him.Raskolnikov also switches moods about his â€Å"act† that he is planning to commit which we come to know is the murder of Alonya Ivanova. He switches his decision several times and finally commits to killing her when he finds out that she will be alone at seven o’ clock, â€Å"he felt suddenly in his whole being that he had no more freedom of thought, no will, and that everything was suddenly and irrevocable decided† (Dostoevsky 65). We also know that Raskolnikov suffered from hallucinations, delusions, and paranoid rage that he used to kill Alonya.These hallucinations included the dream of the horse getting beaten, the dream that his landlady was being beaten, and the nightmare when Raskolnikov is trying to kill the pawnbroker but she does not die, she only laughs. Dostoevsky helped to pave the way for other doctors and scientists to discover all of the symptoms of these mental illnesses we now know as schizophrenia, dissociative identity disorder, and bipolar disorder. This shows how much Dostoevsky knew about human nature. He was able to pick out tendencies that many mentally ill people have.Not only did he describe these three, he also described alcoholism very accurately by using the character Marmeladov to show that alcoholism only leads to suffering and the more one continues to drink, the more suffering they endure, â€Å"â€Å"the more I drink, the more I feel it. That’s why I drink too. I try to find sympathy and feeling in drink†¦. I drink so that I may suffer twice as much! † And as though in despair he laid his head down on the table† (14). Dostoevsky was a very extraordinary man and he gave mankind many contributions.Psychology was an important part of Crime and Punishment, but it is also clear that Dostoevsky is a very intelligent writer and incorporates many different themes into his works. ? Works Cited â€Å"A Brief History of Bipolar Disorder. † Today’s Caregiver. 2009. http://www. caregiver. com/channels/bipolar/articles/brief_history. htm. Dostoevsky, Fyodor. Crime and Punishment. Ed. Bantam Classic Reissue. New York: Bantam Dell, 2003. â€Å"The History of Schizophrenia. † Schizophrenia. com. 2004. http://www. schizophrenia. com/history. htm .Pendergrast, Mark. Victims of Memory. Upper Access Books, 1996. â€Å"Schizophrenia. † Dictionary. com. 2009. http:// dictionary. reference. com/browse/schizophrenia. WebMD LLC. â€Å"Bipolar Disorder. † WebMD. 2009. http://www. webmd. com/depression/guide/bipolar-disorder-manic-depression. WebMD LLC. â€Å"Dissociative Identity Disorder. † WebMD. 2009. http://www. webmd. com/mental-health/dissociative-identity-disorder-multiple-personality-disorder. WebMD LLC. â€Å"Medical Dictionary: Schizophrenia. † WebMD. 2009. http://dictionary. webmd. com/terms/schizophrenia.

The Stress on Americas Equality Essay - 1176 Words

In America’s society, equality has always been a reoccurring issue. All the way from early slavery and the Holocaust to discrimination toward African Americans, females, and now same-sex marriages. As much as our world focuses on becoming equal, each culture deals with it’s own differences. In Michael Jackson’s song, â€Å"Black or White† compared with Macklemore and Ryan Lewis’ song, â€Å"Same Love,† they each approach the same topic encompassing equality. Songs from completely two different generations but each song is concentrating on the important issues of their time, racial discrimination and same-sex relationships. Both of the artists have the same dreams on fairness and each song is just the start of how people started to change their†¦show more content†¦Michael Jackson was a prominent role model of the 1980’s and 90’s. His songs influenced and left an impact on people in a way that no artist has every done b efore. He not only left his impact on music, but also left his impact on society. He is known as â€Å"The King Of Pop† due to many of his billboard topping songs and his talented singing voice and dance moves that no one could replicate. He started at a young age, beginning his singing career at the age of 5 years old. Here he joined his brothers and made The Jackson 5. By his teenage years he began to stand out and started his own solo career as an artist. One of Michael’s biggest problems he had to face was a horrible skin condition called Vitiligo. It is a chronic skin condition that causes loss of pigment. Irregular pale patches of skin are the outcome of this pigment loss and a lot of people refer to it as â€Å"turning from black to white.† Jackson’s doctor, Patrick Treacy, reported to the public, â€Å"It is well documented that in 1986, Michael was diagnosed with Vitiligo† (Treacy). This was the beginning of his transformation. 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Operant and Classical Conditioning Psychological Processes Free Essay Example, 1000 words

While classical conditioning involves a neutral signal placed before a reflex, operant conditioning applies punishment or reinforcement to encourage or deter a behavior. Operant conditioning involves voluntary action whose outcome is either encouraged or discouraged. On the other hand, classical conditioning entails involuntary and automatic behavior. While classical conditioning involves a neutral signal placed before a reflex, operant conditioning applies punishment or reinforcement to encourage or deter a behavior. Operant conditioning involves voluntary action whose outcome is either encouraged or discouraged. On the other hand, classical conditioning entails involuntary and automatic behavior. A good example of Classical conditioning is the claim that the beach is packed because it is sunny , where the stimulus is the weather. Cherry (n. d.) states that classical conditioning produces an unconditioned response characterized by an unconditioned stimulus. In this case, the r eason the beach is packed with many people is because of a conducive stimulus that encourages them to go to the beach. When we consider the case of a prosecutor presenting a guilty charge against the defendant, then we are looking at classical conditioning. His job acts as a stimulus and the response he elicits is prosecuting the convict. We will write a custom essay sample on Operant and Classical Conditioning Psychological Processes or any topic specifically for you Only $17.96 $11.86/page Working with the defendants will create a different stimulus that will facilitate recovery from the guilty presumption that he was familiar with; to the notion of innocent till proven guilty. In order to check the effectiveness of the burger incentive, I would keep a record of the average number of individuals visiting the beach on non-sunny days. In classical conditioning, the neutral stimulus does not produce any response until it pairs with an unconditioned stimulus.