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:

Rejection Is Ineffective

A legal principle indicating that simply refusing or rejecting an offer or contract does not nullify or void its terms or its potential effects.

Notifies The Seller

The act of informing the seller about relevant information or decisions, typically in a commercial transaction.

Right To Inspect

The right to inspect allows one party to a transaction, typically the buyer, to examine goods or property before finalizing the purchase to ensure they meet specified criteria or quality.

Duty Of Performance

An obligation in contract law requiring parties to complete their contractual obligations to a satisfactory standard.