Question

QUESTION 1

Of 200 subjects approached by Interviewer A, 51 refused to be interviewed. Of 120 subjects approached by interviewer B, 49 refused an interview. Can we reject the possibility that the two interviewers are equally capable of obtaining interviews?

Provide the test statistics value from your analysis.

QUESTION 2

A telephone sales solicitor, trying to decide between two alternative sales pitches, randomly alternate between them during a day of calls. The following table provides the proportion of people interested in the product.

	Approach A	Approach B
% Interested	21%	15%
# of Calls	100	100

Conduct a hypothesis testing to determine whether there is a difference in the proportions of those interested based on the sales pitch. Provide the test statistics value from your analysis.

Answer 1