Question
In a random sample of 20 people, the mean commute time to work was 31.6 minutes and the standard deviation was 7.3 minutes. Assume the
In a random sample of 20 people, the mean commute time to work was 31.6 minutes and the standard deviation was 7.3 minutes. Assume the population is normally distributed and use at-distribution to construct a 90% confidence interval for the population mean . What is the margin of error of ? Interpret the results.
The confidence interval for the population mean is (______, and _______)
What is the margin of error of ?
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Managerial Accounting
Authors: John J. Wild, Ken W. Shaw
2010 Edition
9789813155497, 73379581, 9813155493, 978-0073379586
