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

question 140

Multiple Choice

SCENARIO 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 Scenario 9-9,which of the following best describes the Type I error?

• A)The president concludes that the mean SAT score of the entering students is lower than previous years when it is indeed not lower.
• B)The president concludes that the mean SAT score of the entering students is higher than previous years when it is indeed not higher.
• C)The president concludes that the mean SAT score of the entering students is not lower than previous years when it is indeed lower.
• D)The president concludes that the mean SAT score of the entering students is not higher than previous years when it is indeed higher.

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Definitions:

Refusals

Acts of declining or rejecting proposals, offers, or commands.

Express Refusals

Express refusals are clear and direct declarations of denial, often communicated to decline offers, requests, or proposals.

Negative Messages

Communication that conveys bad news, rejection, or criticism, often requiring careful wording to maintain goodwill.

Phrases

Phrases are groups of words that work together as a linguistic unit, typically forming a component of sentences without a subject and predicate of their own.