TABLE 11-1 A Corporation Randomly Selects 150 Salespeople and Finds That 66

question 61

Multiple Choice

TABLE 11-1
A corporation randomly selects 150 salespeople and finds that 66% who have never taken a self-improvement course would like such a course. The firm did a similar study 10 years ago in which 60% of a random sample of 160 salespeople wanted a self-improvement course. The groups are assumed to be independent random samples. Let π1 and π2 represent the true proportion of workers who would like to attend a self-improvement course in the recent study and the past study, respectively.
-Referring to Table 11-1, the company tests to determine at the 0.05 level whether the population proportion has changed from the previous study. Which of the following is most correct?

• A) Reject the null hypothesis and conclude that the proportion of employees who are interested in a self-improvement course has changed over the intervening 10 years.
• B) Do not reject the null hypothesis and conclude that the proportion of employees who are interested in a self-improvement course has not changed over the intervening 10 years.
• C) Reject the null hypothesis and conclude that the proportion of employees who are interested in a self-improvement course has increased over the intervening 10 years.
• D) Do not reject the null hypothesis and conclude that the proportion of employees who are interested in a self-improvement course has increased over the intervening 10 years.

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Definitions:

Mistake Of Judgment

an error made in the decision-making process, often due to a lack of information or misinterpretation of facts.

Corporate Director

A member of the board of directors of a corporation, responsible for overseeing and guiding the corporation's policies and direction.

Corporate Books

Official records that a corporation is required to maintain, which include registration details, bylaws, minutes of meetings, and financial accounts.

Supervise Officers

The act of overseeing and directing the work and performance of law enforcement personnel.