SCENARIO 10-10 a Corporation Randomly Selects 150 Salespeople and Finds

question 149

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 and 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/are the critical value(s) when testing whether population proportions are different if = 0.10?

• A) 1.645
• B) 1.96
• C)-1.96
• D) 2.08

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