We take a sample of size 16 from a population representing the service time at a gas station. The sample average is 5.2 minutes and the sample standard deviation is 1.1. Calculate the 90% confidence interval for the population variance assuming the population mean is unknown.
The lower end of the confidence interval is should be a number rounded to five decimal pla use symbols such as %] The upper end of the confidence interval is
We take a sample of size 16 from a population representing the service time at a gas station. The sample average is 5.2
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We take a sample of size 16 from a population representing the service time at a gas station. The sample average is 5.2
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