Please solve for the confidence interval of population variance and the population standard deviation

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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Please solve for the confidence interval of population variance and the population standard deviation
The annual earnings of 12 randomly selected computer software engineers have a sample standard deviation of $3601. Assume the sample is from a normally distributed population. Construct a confidence interval for the population variance o² and
the population standard deviation o. Use a 99% level of confidence. Interpret the results.
What is the confidence interval for the population variance o²?
) (Round to the nearest integer as needed.)
Transcribed Image Text:The annual earnings of 12 randomly selected computer software engineers have a sample standard deviation of $3601. Assume the sample is from a normally distributed population. Construct a confidence interval for the population variance o² and the population standard deviation o. Use a 99% level of confidence. Interpret the results. What is the confidence interval for the population variance o²? ) (Round to the nearest integer as needed.)
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