the k question 28 12 4 71 hw score 45 62 14 14 of 31 points o points 0
Question
-The
K
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Question 28, 12.4.71
HW Score: 45.62%,
14.14 of 31 points
O Points: 0 of 1
The margin of error improved by %.
(Round to the nearest tenth as needed.)
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Using a random sample of 4100 TV households, a media research company found that
57.4% watched the final episode of a long-running popular series. The margin of error in
this percent was ±1.6%. In a later study, the same media research company increased its
random sample to 6300. By how much did this improve the margin of error?