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 1 and 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 12-1, if the firm wanted to test whether this proportion has changed from the previous study, which represents the relevant hypotheses? Question 3 options:

A)

H0: 1 - 2 0 versus H1: 1 - 2 = 0

B)

H0: 1 - 2 0 versus H1: 1 - 2 < 0

C)

H0: 1 - 2 = 0 versus H1: 1 - 2 0

D)

H0: 1 - 2 0 versus H1: 1 - 2 > 0