Question: A study was designed to evaluate whether the population of interest has a mean greater than 9. A random sample of n = 17 units

A study was designed to evaluate whether the population of interest has a mean greater than 9. A random sample of n = 17 units was selected from a population, and the data yield x-bar = 10.1 and s = 3.1.
a. Is there substantial evidence (a = .05) that the population mean is greater than 9?
b. What is the level of significance of the test?

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