Maurice Tutor

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    Argosy University/ Phoniex University/
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Category > Computer Science Posted 09 May 2018 My Price 6.00

sampling design

Gender gap. A presidential candidate fears he has a problem with women voters. His campaign staff plans to run a poll to assess the situation. They’ll randomly sample 300 men and 300 women, asking if they have a favorable impression of the candidate. Obviously, the staff can’t know this, but suppose the candidate has a positive image with 59% of males but with only 53% of females.

a) What sampling design is his staff planning to use?

b) What difference would you expect the poll to show?

c) Of course, sampling error means the poll won’t reflect the difference perfectly. What’s the standard deviation for the difference in the proportions?

d) Sketch a sampling model for the size difference in proportions of men and women with favorable impressions of this candidate that might appear in a poll like this.

e) Could the campaign be misled by the poll, concluding that there really is no gender gap? Explain.

 

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Maurice Tutor
(5)
Status NEW Posted 09 May 2018 08:05 PM My Price 6.00

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