If ∝ = 0.05 and n = 29; t∝/2 equals:
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t = ¯. X − µ s. √ n. • If σ is known: Reject H0 if Z falls in the rejection region. The rejection region is ... b. Using the 0.05 level of significance test her claim. 4 ... 31 29 19 18 31 28. 34 27 34 ...
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