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

question 119

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 there is sufficient evidence to show that the mean SAT score of the entering class this year is lower than previous years with no more than a 5% probability of incorrectly rejecting the true null hypothesis.

---

Definitions:

Cochlea

A spiral-shaped, fluid-filled inner ear structure responsible for converting sound waves into nerve impulses to be interpreted by the brain.

Iris

The colored part of the eye surrounding the pupil, which controls the size of the pupil opening and thus the amount of light that enters the eye.

Subliminal Stimulation

The process of influencing someone's thoughts or behaviors by exposing them to stimuli below the threshold of conscious awareness.

Psychokinesis

The supposed ability to move or manipulate objects with the mind without physical interaction.