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.

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Definitions:

Social Benefits

The advantages and improvements to society and communities resulting from actions, policies, or investments, including education, health, and public safety.

Paradox Of Voting

A situation where paired-choice voting by majority rule fails to provide a consistent ranking of society’s preferences for public goods or public services.

Majority Voting

Majority voting is a voting system in which decisions are made based on the majority of votes cast, requiring more than half the votes to pass a proposal or elect a candidate.

Marginal Benefits

The extra pleasure or benefit obtained from acquiring or creating an additional unit of a product or service.