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:

Scapegoating

The practice of singling out any party for unmerited negative treatment or blame.

Other-Race Effect

The tendency to more easily recognize faces of one's own race, compared to faces of other races, often attributed to social and cognitive factors.

Aggression

Behavior aimed at causing harm or pain to another being, which can be physical or verbal.

Hindsight Bias

The tendency to believe, after an event has occurred, that one would have predicted or expected the outcome, often known as the "I-knew-it-all-along" phenomenon.