Assuming normality and known variance u 2 = 4. test the
Chapter 25, Problem 25.4(choose chapter or problem)
Assuming normality and known variance u 2 = 4. test the hypothesis fL = 30.0 again~t the alternative (a) JL = 28.5. (b) JL = 30.7. using a sample of size 10 with mean x = 28.5 and choosing a = 5%.
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