-The

K

(

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.)

Save

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?