Question

A poll taken this year asked 1006 adults whether they were fans of a particular sport and 39 % said they were. Last year, 44 % of a similar-size sample had reported being fans of the sport. Complete parts a through e below

a) Find the margin of error for the poll taken this year if one wants 95% confidence in the estimate of the percentage of adults who are fans of the sport.

b) Explain what that margin of error means.

c) If one wanted to be 99%confident instead of 95% confident, would the margin of error be larger or smaller?

d) Find the margin of error for the poll taken this year if one wants 99% confidence in the estimate of the percent of adults who are fans of the sport.

e) In general, if all other aspects of the situation remain the same, will smaller margins of error produce greater or less confidence in the interval?

Answer #1

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Complete parts a through e below.
a) Find the margin of error for the poll taken this year if one
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d) Find the margin of error for the...

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