MATLAB: An Introduction with Applications
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Author: Amos Gilat
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Transcribed Image Text:tig The waiting times (in minutes) of a random sample of 22 people at a bank have a sample standard deviation of 4.3 minutes. Construct a confidence interval for the
population variance o and the population standard deviation o. Use a 90% level of confidence. Assume the sample is from a normally distributed population.
What is the confidence interval for the population variance o ?
OD (Round to one decimal place as needed.)
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