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

question 130

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, the lowest level of significance at which the null hypothesis can still be rejected is ________.

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Definitions:

Disintegrate

To break down or fall apart, either physically or structurally, often resulting in loss of coherence or unity.

Source Traits

Are foundational personality characteristics from which surface traits are derived, serving as the building blocks of an individual's personality.

Surface Traits

Characteristics or qualities of an individual that are observable and can be easily identified by others.

Personality Basis

The underlying elements or factors that form an individual's distinctive character and behavioral patterns.