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

question 28

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 $\alpha$ = 0.05?

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

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Definitions:

Axillary

Pertaining to the area under the arm where the arm meets the shoulder.

Oral

Pertaining to the mouth, including aspects related to speaking, eating, or medication administration.

Rectal

Relating to, or situated near the rectum, the final section of the large intestine.

Axillary

Pertaining to the armpit area of the body.