Question on hypothesis testing of proportion

Reference no: EM13109569

Please solve the exercise below and show your work in Excel (and formulas).

In an early study, researchers at an Ivy University found that 33% of the freshmen had received at least one A in their first semester. Administrators are concerned that grade inflation has caused this percentage to increase. In a more recent study, of a random sample of 500 freshmen, 185 had at least one A in their first semester Calculate the appropriate test statistic to test the hypotheses related to the concern and test at 5% and 1%.

Reference no: EM13109569

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