1. STAT10T 7.2.1-2 (Points: 5.0) Solve the problem. Find the critical value zα/2 that corresponds to a degree of confidence of 91%. a. 1.645 b. 1.75 c. 1.34 d. 1.70 2. STAT10T 7.2.3-2 (Points: 5.0) Solve the problem. The following confidence interval is obtained for a population proportion‚ p: 0.817 < p < 0.855 Use these confidence interval limits to find the point estimate‚ . a. 0.833 b. 0.817 c. 0.839 d. 0.836 3. STAT10T 7.2.4-3 (Points: 5
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evidence to infer that the population mean is not equal to 180. c t x s/ n 175 180 60 / 200 1.18‚ p-value = .2400. There is not enough evidence to infer that the population mean is not equal to 180. 269 d. As the s increases‚ the test statistic increases and the p-value increases. 12.12 H0 : H0 : = 50 50 a Rejection region: t t x s/ n 52 50 15 / 25 t / 2‚n 1 t .05‚24 1.711 or t t / 2‚n 1 t .05‚24 1.711 .67‚ p-value = .5113. There is not enough evidence
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Baseball has been America’s pastime since the late 1800’s. White men were the only ones who played the sport. Major League Baseball denied the access of allowing black players to play on the same field as the white players. They believed it would increase the amount of black fans coming to the stadiums and push away the white fans from coming to watch baseball anymore. In 1945‚ a new commissioner of baseball was hired‚ Happy Chandler‚ and he was more supportive of integrating the major leagues. People
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How to validate root causes in a lean sigma approach Silvia Pederzolli Milan‚ the 15th of april 2013 attivaRes Define Opportunities Measure Performance Analyze Opportunity Improve Performance Control Performance CCR’S Objective • • • • • Identify problem statement: what is wrong and why. Deviation from what is expected (targeted performance). How much/how often Effects on Customers. Find and validate the root causes that assure the elimination of “real” root causes.
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It was June 22 and it was a perfect day for a baseball game. My team the Diamondbacks‚ needed one win to get into the playoffs‚ and that clinching game was today. When I woke up the sun was coming up and I went to go wake up my dad so he could take me to the game. When I woke him up he looked like zombie who has not slept in weeks. “Noah‚ why are you up so early?” he said‚ “I just want to make sure we are not late for the game.” I replied. “Noah it’s 7:30am and your game is not until 3:30!” I
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Comparing and Contrasting Baseball Players of Different I believe that an individual cannot compare between baseball players of different Era’s. The reason why I say this is because the game has changed dramatically. Over the years American League has allowed designated hitters since 1973‚ while the National League hasn’t. A designated hitter is a batter who bats instead of the pitcher. In the 1960’s pitchers did not have relief pitching‚ so you basically threw until your arm fell off. It was
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It is known that there are two data types that are utilized to evaluate and draw meaningful conclusions through statistics‚ population and sample data. These two data types are utilized to formulate end conclusions of data that is to be collected and data that is to be reviewed. The description of population data can best be explained‚ as the complete collection of all data that is to be queried/collected and reviewed. Sample data‚ a subset of population data‚ is the partial collection and review
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alternative hypothesis should state µ1 − µ2 > 0 ANSWER: c 2. A Type I error is committed when a. a true alternative hypothesis is not accepted b. a true null hypothesis is rejected c. the critical value is greater than the value of the test statistic d. sample data contradict the null hypothesis ANSWER: b In determining an interval estimate of a population mean when σ is unknown‚ we use a t distribution with a. n − 1 degrees of freedom 3. b. c. d. ANSWER: 4. n degrees of freedom n −
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hers was basketball and I told her mine was baseball. “Baseball is boring to watch‚” she said. Hearing someone say this about my favorite sport that I have been playing throughout my life irritates me and it brings my attention to wonder why people find this sport boring. People similar to this woman‚ believe that baseball is a boring sport yet they do not realize that it is actually one of America’s most exciting sports! People who believe baseball is boring must not comprehend the variables to
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MM207 Final Project Name: Eddie S. Jackson 1. Using the MM207 Student Data Set: a) What is the correlation between student cumulative GPA and the number of hours spent on school work each week? Be sure to include the computations or StatCrunch output to support your answer. My answer : 0.27817234 (from StatCrunch): Correlation between Q10 What is your cumulative Grade Point Average at Kaplan University? and Q11 How many hours do you spend on school work each week? is: 0.27817234 b)
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