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 null hypothesis would be rejected if a 1% probability of committing a Type I error is allowed.

Question

Quizplus · Accepted Answer

The question mentions a 5% level of significance, but the statement in Table 9-9 refers to a 1% probability of committing a Type I error. This is not consistent with the information given in the question, so the answer is false. The null hypothesis would be rejected if the p-value is less than or equal to 0.05.

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