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Construct the ci for the mean of population mean

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In a study that compared therapies for anorexia. For the 17 girls who received the family therapy, the changes in weight during the study were 11, 11, 6, 9, 14, - 3, 0, 7, 22, - 5, - 4, 13, 13, 9, 4, 6, 11.

(a) If you want to build a CI for the mean of population changes in weight, µ, what is the margin of error for a 95% CI?

(b) Construct the 95% CI for the mean of population mean µ?

(c) Construct the 80% CI for µ?

(d) If for the changes in weight σ = 3, and the margin of error m = 2, how many samples do you need to construct an 90% confidence interval?

Reference no: EM132855416

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