In a random sample of 25 people, the mean commute time to work was 33.4 minutes...
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In a random sample of 25 people, the mean commute time to work was 33.4 minutes and the standard deviation was 7.1 minutes. Assume the population is normally distributed and use a t-distribution to construct a 99% confidence interval for the population mean µ. What is the margin of error of u? Interpret the results. The confidence interval for the population mean u is ( H D. (Round to one decimal place as needed.) In a random sample of 25 people, the mean commute time to work was 33.4 minutes and the standard deviation was 7.1 minutes. Assume the population is normally distributed and use a t-distribution to construct a 99% confidence interval for the population mean µ. What is the margin of error of u? Interpret the results. The confidence interval for the population mean u is ( H D. (Round to one decimal place as needed.)
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Elementary Statistics Picturing the World
ISBN: 978-0321911216
6th edition
Authors: Ron Larson, Betsy Farber
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