the election. To predict the winner a newspaper would like to have a poll that has margin of error of less than 1%. Roughly how large a sample would be needed for such a poll? Chapter 8 6. A large population of overdue bills ha balances that follow a normal curve. When we take a sample of 100 of these the average is $500 and the SD is $100. (a) What statement can you make about the range $300 to $700? (b) What statement can you make about the range $480 to $520? 10. Pollsters try to determine
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Practice Problems 1-KEY 1. The closing stock price of Ahmadi‚ Inc. for a sample of 10 trading days is shown below. Day Stock Price 1 84 2 87 3 84 4 88 5 85 6 90 7 91 8 83 9 82 10 86 For the above sample‚ compute the following measures. a. b. c. The mean = ∑X/n = 860/10 = 86 The median = (85+86)/2 = 85.5 The variance = ∑ X - X 2/ n-1 = {(84-86)2 + (87-86)2 + (84-86)2 + (88-86)2 + (85-86)2 + (90-86)2 + (91-86)2 + (83The standard deviation = √8.89 = 2.98 The coefficient of variation = 2.98/86 * 100%
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hypothesis test‚ a Type I Error occurs when the null hypothesis is rejected when it is in fact true. That means if the consortium decides to consider a settlement when greater than 10% of the patrons resented ads/commercials is true and we reject the null hypothesis when in fact null hypothesis is correct‚ then we will make a type I error. A Type II Error occurs if Ha is true and we accept Ho when it is false. That means if the consortium will defend any lawsuit by tommy when 10% or less does not like ads/commercials
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the movie “Now You See Me”‚ the protagonists are Daniel Atlas‚ Merritt McKinney‚ Henley Reese‚ Jack Wilder‚ Dylan Rhodes and Alma Dray. Thaddeus Bradley and Arthur Tressler are the antagonists. A famous American actor Morgan Freeman plays the role Thaddeus Bradley in “Now You See Me”‚ a former magician then a proficient magic debunker who made money by revealing the magic tricks done in the movie. He is actually very desperate for being invited to “The Eye” but he wasn’t because of what he did to
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“Do what you can‚ with what you have‚ where you are‚” is a quote by Theodore Roosevelt. On October 27‚ 1858‚ a huge United States influence was born. Not only a leader‚ protector‚ vice president‚ governor‚ but a United States President. “Teedie” Roosevelt was born into a wealthy family in New York City‚ New York. He was born to the parents‚ Martha Bulloch and Theodore Roosevelt. Martha worked as Socialite and Theodore as a Philanthropist. As young child‚ Teddy was very unhealthy‚ however‚ in teenage
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1. “What is the life expectancy for Caucasian males that have survived 54 years?” The answer will almost certainly be larger than 72. I want an estimate “conditioned on” the fact that I have already lived 54 years. Life is dynamic. Things are constantly changing. However‚ too often decisions are based on static information. Bayes theorem takes advantage of dynamic information to give a better‚ more correct answer. Bayes Theorem is a mathematical representation that helps one to calculate conditional
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What Have You Done As A Leader And How Has It Affected Your Life? Leadership is an intangible asset that usually cannot be showcased through medals and plaques‚ as athleticism or aesthetic talent. However‚ it is essential for an organisation and corporation as well as small businesses to have these skills to live in the competitive world in order to be successful. What have I done as a leader? and How has it affect my life ? I am really grateful to be the elected as the head of the Living
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divided into 5 chapters in which each chapter individually will explain and connect various information and research in order to give readers a better idea of the outcome‚ which will eventually be explained in chapter 5. The variables that will be used are divided into both dependant and independent variables. The variables are as follows; 1. dependent variable- FTSE 100 Index (Y) 2. independent variable- UK government bond market (X1)‚ 3. independent variable- S&P 500 Index (X2)
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1 Statistics plays a vital role in almost every facet of human life. Describe the functions of Statistics.Explain the applications of statistics. Meaning of statistics Functions of statistics Applications of statistics. Ans:Statistics plays an important role in almost every facet of human life. In business context‚ managers are required to justify decisions on the basis of data. They need statistical models to support these decisions. Statistical skills enable managers to collect‚ analyse and
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• Defining What Statistics Really Is 1.1 Nature of Statistics The term “Statistics” came from the Latin word ‘status’ which could be translated as ‘state’. The usage of this term only became popular during the 18 th century where they defined Statistics as “the science of dealing with data about the condition of a state or community”. The practice of statistics could be traced back even from the early biblical times where they gather figures related to governance of the state for they realized
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