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In a recent study of 92 eighth graders the mean number of

Question: In a recent study of 92 eighth graders, the mean number of hours per week that they watched television was 22.6. Assume the population standard deviation is 5.2 hours.

a) Find the 99% confidence interval of the mean.

b) If the standard deviation is doubled to 10.4, what will be the effect on the confidence interval?

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Mathematics: In a recent study of 92 eighth graders the mean number of

Reference No:- TGS02349696

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