SOLUTION: a random sample of 50 people was asked to keep a record of the amount of time spend watching tv in in a specified week. if the sample mean was 24.4 hours and the sample standard de

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Question 930949: a random sample of 50 people was asked to keep a record of the amount of time spend watching tv in in a specified week. if the sample mean was 24.4 hours and the sample standard deviation was 7.4 hours, give a 95% confidence interval estimate for the average time spent watching tv by all members of the population that week. what is the margin of error?
Answer by ewatrrr(24785) About Me  (Show Source):
You can put this solution on YOUR website!
sample mean was 24.4 hours and the sample standard deviation was 7.4 hours
ME = 1.96(7.4/sqrt(50) = 2.05 rounded
.......
24.4 ± 2 the confidence Interval estimate
(22.4, 26.4)