A student believes that the average grade on the statistics final examination was 87.A sample of 36 past final examinations was taken.The average grade in the sample was 83.96 with a standard deviation of 12.
a.
State the null and alternative hypotheses.
b.
Using the critical value approach, test the hypotheses at the 5% level of significance.
c.
Using the p-value approach, test the hypotheses at the 5% level of significance.

Question

Quizplus · Accepted Answer

The Answer of A student believes that the average grade on the statistics final examination was 87.A sample of 36 past final examinations was taken.The average grade in the sample was 83.96 with a standard deviation of 12.
a.
State the null and alternative hypotheses.
b.
Using the critical value approach, test the hypotheses at the 5% level of significance.
c.
Using the p-value approach, test the hypotheses at the 5% level of significance.

A Student Believes That the Average Grade on the Statistics