SCENARIO 12-1
a Corporation Randomly Selects 150 Salespeople and Finds $\pi$

question 173

Multiple Choice

SCENARIO 12-1
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 $\pi$ ₁ and $\pi$ ₂ 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 Scenario 12-1,what is the critical value when performing a chi-square test on whether the population proportions are different if ? = 0.05?

• A)\(\pm\)1.645
• B)\(\pm\)1.96
• C)3.841
• D)2.706

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Definitions:

Variable Overhead

Costs of operation that fluctuate with production volume, such as utilities for machinery.

Direct Labor-Hours

The cumulative amount of time employees spend specifically on the creation of goods or services.

Variable Overhead

Costs that fluctuate with production volume, such as utilities or indirect materials, which are not directly tied to any single product.

Direct Materials

Basic substances that can be directly linked to the manufacture of particular products or services.