Assignment 5
WITH CORRECT
ANSWERS
, (a) State the null and alternative hypotheses. Let group 1 be the supporters of
Candidate A after a phone call and let group 2 be the supporters of Candidate A after a
flyer.
p̂1 = .645
p̂2 = .59
Yes - CORRECT ANSWERS-When getting voters to support a candidate in an election,
is there a difference between a recorded phone call from the candidate or a flyer about
the candidate sent through the mail? A sample of 400 voters is randomly divided into
two groups of 200 each, with one group getting the phone call and one group getting the
flyer. The voters are then contacted to see if they plan to vote for the candidate in
question. We wish to see if there is evidence that the proportions of support are different
between the two methods of campaigning.
(See: https://imgur.com/Upk6bBJ)
(b) Possible sample results are shown in Table 1. Compute the two sample proportions:
p̂1, the proportion of voters getting the phone call who say they will vote for the
candidate, and p̂2 , the proportion of voters getting the flyer who say they will vote for
the candidate. Enter the exact answers. Is there a difference in the sample proportions?
p̂1 = .815
p̂2 = .59 - CORRECT ANSWERS-When getting voters to support a candidate in an
election, is there a difference between a recorded phone call from the candidate or a
flyer about the candidate sent through the mail? A sample of 400 voters is randomly
divided into two groups of 200 each, with one group getting the phone call and one
group getting the flyer. The voters are then contacted to see if they plan to vote for the
WITH CORRECT
ANSWERS
, (a) State the null and alternative hypotheses. Let group 1 be the supporters of
Candidate A after a phone call and let group 2 be the supporters of Candidate A after a
flyer.
p̂1 = .645
p̂2 = .59
Yes - CORRECT ANSWERS-When getting voters to support a candidate in an election,
is there a difference between a recorded phone call from the candidate or a flyer about
the candidate sent through the mail? A sample of 400 voters is randomly divided into
two groups of 200 each, with one group getting the phone call and one group getting the
flyer. The voters are then contacted to see if they plan to vote for the candidate in
question. We wish to see if there is evidence that the proportions of support are different
between the two methods of campaigning.
(See: https://imgur.com/Upk6bBJ)
(b) Possible sample results are shown in Table 1. Compute the two sample proportions:
p̂1, the proportion of voters getting the phone call who say they will vote for the
candidate, and p̂2 , the proportion of voters getting the flyer who say they will vote for
the candidate. Enter the exact answers. Is there a difference in the sample proportions?
p̂1 = .815
p̂2 = .59 - CORRECT ANSWERS-When getting voters to support a candidate in an
election, is there a difference between a recorded phone call from the candidate or a
flyer about the candidate sent through the mail? A sample of 400 voters is randomly
divided into two groups of 200 each, with one group getting the phone call and one
group getting the flyer. The voters are then contacted to see if they plan to vote for the
