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Make an interval estimate of the mean

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Reference no: EM1319834

Question: An elementary school principal would like to know how many hours the students spend watching TV each day. A sample of n = 25 children is selected, & a survey is sent to each child's parents. The results indicate an average of M = 3.1 hours per day with a standard deviation of s = 3.0

[A] Make an interval estimate of the mean so that you are 90 percent confidant that the true mean is in your interval.
[B] Make a point estimate of the mean number of hours of TV per day for the population of elementary school children

 

Reference no: EM1319834

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