Question: Help solve please Test the following hypotheses with a = .05 given that x = 405, s = 100, and z = 1,000. HO: u

Help solve please

Test the following hypotheses with a = .05 given that x = 405, s = 100, and z = 1,000. HO: u = 400 H1: u > 400 b. Repeat part (a) assuming that you know that the population standard deviation is o = 100. c. Explain why the conclusions produced in parts (a) and (b) are virtually identical

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