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A random sample of n = 81 measurements to test Ho: μ = 40 versus Ha: μ ≠ 42, x-bar = 34 and σ = 18
Calculate the value of the test statistic z:
What is the rejection point at α = .10 and indicate if you would accept or reject Ho?
What is the rejection point at α = .05 and indicate if you would accept or reject Ho?
What is the rejection point at α = .01 and indicate if you would accept or reject Ho?
What is the rejection point at α = .001 and indicate if you would accept or reject Ho?
Calculate the p-value:
Do any of your above conclusions change on acceptance or rejection of Ho?
How much evidence is there that the mean composite satisfaction does not equal 40?
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Probability histogran curve of percentage of (P)z
Give null and alternative hypotheses for this test in symbolic form.
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