TABLE 9-9 The President of a University Claimed That the Entering Class

question 134

Short Answer

TABLE 9-9
The president of a university claimed that the entering class this year appeared to be larger than the entering class from previous years but their mean SAT score is lower than previous years. He took a sample of 20 of this year's entering students and found that their mean SAT score is 1,501 with a standard deviation of 53. The university's record indicates that the mean SAT score for entering students from previous years is 1,520. He wants to find out if his claim is supported by the evidence at a 5% level of significance.
-Referring to Table 9-9, what critical value should the president use to determine the rejection region?

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Definitions:

Occupancy Costs

Expenses related to occupying a space, including rent, utilities, and other facility-related costs.

Spending Variance

The difference between the actual spending and the budgeted or planned spending in a given period.

Revenue Variance

The difference between the actual revenue earned and the expected revenue according to budget.

Net Operating Income

The profit derived from a company's regular business operations, excluding deductions of taxes and interest expenses.