Exhibit 10

question 32

Multiple Choice

Exhibit 10.7.A stats professor at a large university hypothesizes that students who take statistics in the morning typically do better than those who take it in the afternoon.He takes independently random samples,each of size 36,consisting of students who took a morning and an afternoon class,and compares the scores of each group on a common final exam.He finds that the morning group scored an average of 74 with a standard deviation of 8,while the evening group scored an average of 68 with a standard deviation of 10.The population standard deviation of scores is unknown,but assumed to be equal for morning and evening classes.Let and represent the population mean final exam scores of statistics' courses offered in the morning and the afternoon,respectively Refer to Exhibit 10.7.Which if the following hypotheses will test the professor's claim?

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Definitions:

Perceptual Defence

A psychological mechanism that allows individuals to screen out stimuli that they find psychologically threatening or disturbing.

Detail Offered

The specific information provided to potential buyers about a product or service to aid their decision-making process.

Targeted Customers

Specific segments of the market identified as potential purchasers or users of a company's products or services.

Perceptual Vigilance

The tendency of individuals to notice and give preferential treatment to stimuli that are relevant to their current needs or interests.