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 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 testing whether the population proportions are different if = 0.10?
A) 1.645
B) 1.96
C)3.842
D)2.706

Question

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  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 testing whether the population proportions are different if  = 0.10?
A) 1.645 
B) 1.96 
C)3.842 
D)2.706

Quizplus · Accepted Answer

The Answer is D

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