Assume that a sample is used to estimate a population mean μμ. Find the 90% confidence interval for a sample of size 696 with a mean of 26.4 and a standard deviation of 6.5. Enter your answer as a tri-linear inequality accurate to 3 decimal places. < μ μ <
Assume that a sample is used to estimate a population mean μμ. Find the 90% confidence interval for a sample of size 696 with a mean of 26.4 and a standard deviation of 6.5. Enter your answer as a tri-linear inequality accurate to 3 decimal places. < μ μ <
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 14PPS
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Assume that a sample is used to estimate a population
< μ μ <
Expert Solution
Step 1
The random variable X follows normal distribution.
We have to construct the 90% confidence interval for the population mean.
Since the sample size is very large, then we have to use z-distribution.
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