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

question 164

True/False

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, the president can conclude that the mean SAT score of the entering class this year is lower than previous years using a level of significance of 0.10.

---

Definitions:

Real Interest Rate

Adjusted interest rate for inflation, reflecting the true cost of borrowing or the real yield on savings.

Nominal Interest Rate

The interest rate before adjustments for inflation, representing the raw interest percentage that lenders charge borrowers for the use of money.

Inflation Rate

The speed at which the aggregate price level for goods and services goes up, undermining the power of purchasing.

Nominal Interest Rate

The rate of interest before adjustments for inflation; the stated rate on a loan or investment.