The following n = 10 observations are a sample from a normal population:

a. Find the mean and standard deviation of these data.
b. Find a 99% upper one-sided confidence bound for the population mean µ.
c. Test H0: µ = 7.5 versus Ha: µ = 7.5. Use α = .01.
d. Do the results of part b support your conclusion in part c?

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