SCENARIO 10-10
a Corporation Randomly Selects 150 Salespeople and Finds $\pi$

question 22

Multiple Choice

SCENARIO 10-10
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 10-10,what is the point estimate for the difference between the two population proportions?

• A)0.06
• B)0.10
• C)0.15
• D)0.22

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Definitions:

Noise

Unwanted or distracting sounds that can interfere with communication or concentration.

Guthrie

An American psychologist who proposed the theory of contiguity, suggesting that learning occurs when a stimulus and response occur close together in time.

Crying Behavior

An emotional and physiological response that can serve various functions, including communication, self-soothing, or as a response to stress or stimuli.