Question: Use the following data: 44 37 49 30 56 48 53 42 51 38 39 45 47 52 59 50 46 34 39 46 27

Use the following data: 

44           37           49           30           56           48          53          42           51

38           39           45           47           52            59           50          46           34

39           46           27           35           52            51           46          45           58

51           37           45           52           51            54           39          48

a. Construct 95% confidence interval to estimate µ. Assume that σ is 7.75. State the point estimate.

b. Suppose that µ = 46. Test the hypothesis at 5% significance level. (Show the 5 steps.)

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