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:

Contact Hypothesis

The proposition that increased exposure and interaction between diverse groups can lead to improved mutual understanding and reduced stereotypes and prejudice, contingent upon the conditions of the interaction.

Stereotype

A fixed, oversimplified, and often inaccurate or generalized belief about a particular group of people.

Increased Contact

A strategy that seeks to improve relationships and reduce conflicts by encouraging more direct or frequent interactions between parties.

Halo Effect

A cognitive bias where an impression formed from one trait or factor influences the perception of other traits.