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Towers Perrin, a New York human resources consulting firm, conducted a survey of 1100 employees at medium sized and large companies to determine how dissatisfied employees were with their jobs. A total of 473 employees indicated they strongly disliked their current work experience.
a. What is the point estimate of the proportion of the population of employees who strongly dislike their current work experience?
b. At 95% confidence, what is the margin of error?
c. What is the 95% confidence interval for the proportion of the population of employees who strongly dislike their current work experience?
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When studying the simultaneous responses to two categorical questions, we should set up a:
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Compute the 99% confidence interval based on four data points that have a sample mean of 71.5 and a sample standard deviation of 16.6032
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A pie chart shows the market shares of cola products. The "slice" for Pepsi-Cola has a central angle of 90 degrees. What is its market share?
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