Instruction 15-1
A large organization randomly selects 150 employees and finds that 66% who have never taken a professional-development course would like such a course. The firm did a similar study 10 years ago in which 60% of a random sample of 160 employees wanted a professional-development course. The groups are assumed to be independent random samples. Let π 1 and π 2 represent the true proportion of workers who would like to attend a professional-development course in the recent study and the past study, respectively.
-Referring to Instruction 15-1,what is the critical value when testing whether population proportions are different if α = 0.10?
A) 2.706
B) ± 1.645
C) 3.842
D) ± 1.96

Question

Quizplus · Accepted Answer

The Answer of Instruction 15-1
A large organization randomly selects 150 employees and finds that 66% who have never taken a professional-development course would like such a course. The firm did a similar study 10 years ago in which 60% of a random sample of 160 employees wanted a professional-development course. The groups are assumed to be independent random samples. Let π 1 and π 2 represent the true proportion of workers who would like to attend a professional-development course in the recent study and the past study, respectively.
-Referring to Instruction 15-1,what is the critical value when testing whether population proportions are different if α = 0.10?
A) 2.706
B) ± 1.645
C) 3.842
D) ± 1.96

Instruction 15-1 A Large Organization Randomly Selects 150 Employees and Finds That