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a) A sample of size 40 from a non-normal population yielded the sample mean z = 71 and 52 = 200. Test Ho: u =

a) A sample of size 40 from a non-normal population yielded the sample mean z = 71 and 52 = 200. Test Ho: u = 72 against H:H * 72. using a 0.01 significance level.

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