B
big m
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Consider the following hypotheses test.
Ho: m ³ 80
Ha: m < 80
A sample of 121 provided a sample mean of 77.3. The population standard deviation is known to be 16.5.
a.Compute the value of the test statistic.
b.Determine the p-value; and at 93.7% confidence, test the above hypotheses.
c.Using the critical value approach at 93.7% confidence, test the hypotheses.
Ho: m ³ 80
Ha: m < 80
A sample of 121 provided a sample mean of 77.3. The population standard deviation is known to be 16.5.
a.Compute the value of the test statistic.
b.Determine the p-value; and at 93.7% confidence, test the above hypotheses.
c.Using the critical value approach at 93.7% confidence, test the hypotheses.