A 90% confidence interval for the population mean is (Use ascending order. Round to two decimal places as needed.)

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
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From a sample of 30 graduate students, the mean number of months of work experience prior to entering an MBA program was 35.77. The national standard deviation is
known to be 20 months. What is a 90% confidence interval for the population mean?
A 90% confidence interval for the population mean is
(Use ascending order. Round to two decimal places as needed.)
Transcribed Image Text:From a sample of 30 graduate students, the mean number of months of work experience prior to entering an MBA program was 35.77. The national standard deviation is known to be 20 months. What is a 90% confidence interval for the population mean? A 90% confidence interval for the population mean is (Use ascending order. Round to two decimal places as needed.)
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