In a random sample of 21 people, the mean commute time to work was 33.6 minutes and the standard deviation was 7.2 minutes. Assume the population is normally distributed and use a t-distribution to construct a 98% confidence interval for the population mean muμ. What is the margin of error of muμ? Interpret the results.
In a random sample of 21 people, the mean commute time to work was 33.6 minutes and the standard deviation was 7.2 minutes. Assume the population is normally distributed and use a t-distribution to construct a 98% confidence interval for the population mean muμ. What is the margin of error of muμ? Interpret the results.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 13PPS
Related questions
Question
In a random sample of
21
people, the
33.6
minutes and the standard deviation was
7.2
minutes. Assume the population is
98%
confidence interval for the population mean
muμ.
What is the margin of error of
muμ?
Interpret the results.
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