In: Statistics and Probability
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 π2represent the true proportion of workers who would like to attend a self-improvement course in the recent study and the past study, respectively.
Question : What is the value of the test statistic to use in evaluating the alternative hypothesis that there is a difference in the two population proportions using α = 0.10?
a) 4.335
b) 2.706
c) 0.274
d) 1.194