Instruction 10-9 A Corporation Randomly Selects 150 Salespeople and Finds That 66

question 73

Multiple Choice

Instruction 10-9
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 Instruction 10-9,what is/are the critical value(s) when testing whether the current population proportion is higher than before if α = 0.05?

• A)+ 1.96
• B)± 1.645
• C)+ 1.645
• D)± 1.96

---

Definitions:

Undermined

Weakened or damaged, typically in a gradual or subtle way.

Overpaid

Receiving compensation that exceeds the perceived value or market worth of one's work or role.

Work Stress

The adverse reaction people have to excessive pressures or other types of demand placed on them at work.

Psychological

relates to the mind or mental processes, especially in connection to behaviors and emotions.