A 90% confidence interval for a population mean is (65, 77). The population distribution is approximately normal and the population standard deviation is known (but not given here). This confidence interval is based on a simple random sample of 25 observations. Calculate (a) the sample mean .
A 90% confidence interval for a population mean is (65, 77). The population distribution is approximately normal and the population standard deviation is known (but not given here). This confidence interval is based on a simple random sample of 25 observations. Calculate (a) the sample mean .
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 4CYU
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