Question: The following MINITAB output presents a confidence interval for a population mean. a. How many degrees of freedom are there? b. Find the critical value

The following MINITAB output presents a confidence interval for a population mean.Variable N Mean X 10 8.5963 StDev 0.11213 SE Mean 0.03546 95%

a. How many degrees of freedom are there?

b. Find the critical value tα∕2 for a 99% confidence interval.

c. Use the critical value along with the information in the computer output to construct a 99% confidence interval for the population mean.

Variable N Mean X 10 8.5963 StDev 0.11213 SE Mean 0.03546 95% CI (8.5161, 8.6765)

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