In a random sample of 25 people, the mean commute time to work was 31.6 minutes and the standard deviation was 7.1 minutes. Assume the population is normally distributed and use a t-distribution to construct a 98% confidence interval for the population mean u. What is the margin of error of u? Interpret the results. The confidence interval for the population mean u is ( D (Round to one decimal place as needed.)
In a random sample of 25 people, the mean commute time to work was 31.6 minutes and the standard deviation was 7.1 minutes. Assume the population is normally distributed and use a t-distribution to construct a 98% confidence interval for the population mean u. What is the margin of error of u? Interpret the results. The confidence interval for the population mean u is ( D (Round to one decimal place as needed.)
Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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![In a random sample of 25 people, the mean commute time to work was 31.6 minutes and the standard deviation was 7.1 minutes. Assume the population is normally distributed and use a
t-distribution to construct a 98% confidence interval for the population mean u. What is the margin of error of u? Interpret the results.
The confidence interval for the population mean u is ( D
(Round to one decimal place as needed.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4601a2ec-aa4f-4895-87c8-bbcf97c3d7d0%2F9dc5f4dd-b938-4a2d-b2a0-1997f311b342%2Ftaiwhqd_processed.jpeg&w=3840&q=75)
Transcribed Image Text:In a random sample of 25 people, the mean commute time to work was 31.6 minutes and the standard deviation was 7.1 minutes. Assume the population is normally distributed and use a
t-distribution to construct a 98% confidence interval for the population mean u. What is the margin of error of u? Interpret the results.
The confidence interval for the population mean u is ( D
(Round to one decimal place as needed.)
![The margin of error of u is
(Round to one decimal plac
Interpret the results.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F4601a2ec-aa4f-4895-87c8-bbcf97c3d7d0%2F9dc5f4dd-b938-4a2d-b2a0-1997f311b342%2Fv5rq7f_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The margin of error of u is
(Round to one decimal plac
Interpret the results.
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