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

question 181

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 II 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:

Sensation

The process by which our sensory receptors and nervous system receive and represent stimulus energies from our environment.

Stimulus Attributes

Characteristics or features of a stimulus that can influence an individual's response or perception.

Lower-Order

Pertaining to basic or fundamental processes that do not involve complex cognitive operations.

Sky

The expanse of air over the Earth, visible from the ground, characterized by blue color during the day and darkness or stars at night.