Use the confidence interval to find the margin of error and the sample mean. (0.072,0.210) The margin of error is 0.069. The sample mean is
Use the confidence interval to find the margin of error and the sample mean. (0.072,0.210) The margin of error is 0.069. The sample mean is
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 3CYU
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![Use the confidence interval to find the margin of error and the sample mean.
(0.072,0.210)
The margin of error is 0.069.
The sample mean is](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F17be4907-a44e-4516-a608-b3fa80a9f748%2F7485a8b5-61c9-4b03-b792-2d76863a9d88%2F67kptod_processed.png&w=3840&q=75)
Transcribed Image Text:Use the confidence interval to find the margin of error and the sample mean.
(0.072,0.210)
The margin of error is 0.069.
The sample mean is
![In a random sample of 29 people, the mean commute time to work was 32.8 minutes and the standard deviation was 7.2 minutes. Assume the population is normally
distributed and use a t-distribution to construct a 95% confidence interval for the population mean μ. What is the margin of error of µ? Interpret the results.
The confidence interval for the population mean μ is (30.1, 35.5).
(Round to one decimal place as needed.)
The margin of error of μ is
(Round to one decimal place as needed.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F17be4907-a44e-4516-a608-b3fa80a9f748%2F7485a8b5-61c9-4b03-b792-2d76863a9d88%2Fjpqmh5_processed.png&w=3840&q=75)
Transcribed Image Text:In a random sample of 29 people, the mean commute time to work was 32.8 minutes and the standard deviation was 7.2 minutes. Assume the population is normally
distributed and use a t-distribution to construct a 95% confidence interval for the population mean μ. What is the margin of error of µ? Interpret the results.
The confidence interval for the population mean μ is (30.1, 35.5).
(Round to one decimal place as needed.)
The margin of error of μ is
(Round to one decimal place as needed.)
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