Consider the following hypothesis test: Ho: ? = 10 Ha: ? ? 10 A sample of 81 provides a sample mean of 9.5 and a sample standard deviation of 1.8
a. Determine the standard error of the mean.
b. Compute the value of the test statistic.
c. Determine the p-value; and at 95% confidence, test the above hypotheses.
a. 0.2
b. t = -2.5
c. p-value is between .01 and .02 (two tail test); reject H0
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