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:

Block Statue

In ancient Egyptian sculpture, a cubic stone image with simplified body parts.

Senenmut

An 18th Dynasty ancient Egyptian architect and government official, known for his close relationship with Queen Hatshepsut.

Sculptural Form

The three-dimensional shape or configuration of a sculpture, emphasizing contours, volumes, and spatial relationships.

Stepped Pyramid

A pyramid structure characterized by its rectangular base and sides that rise in stepped levels, often associated with ancient Mesopotamian, Mesoamerican, and Egyptian architectures.