c.) What is the positive critical value that corresponds to an 99% confic hundredth) ta/2 %3! d.) What is the 99% confidence interval estimate of the mean time for hi

MATLAB: An Introduction with Applications
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In a sample of 8 hip surgeries, the average surgery times was 131.5 minutes with a standard deviation of 20.9 minutes.
c.) What is the positive critical value that corresponds to an 99% confidence interval for this situation? (round to the nearest
hundredth)
ta/2
%3D
d.) What is the 99% confidence interval estimate of the mean time for hip surgery? (round to two decimal places)
Transcribed Image Text:In a sample of 8 hip surgeries, the average surgery times was 131.5 minutes with a standard deviation of 20.9 minutes. c.) What is the positive critical value that corresponds to an 99% confidence interval for this situation? (round to the nearest hundredth) ta/2 %3D d.) What is the 99% confidence interval estimate of the mean time for hip surgery? (round to two decimal places)
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