Question: A portion of a study by Wechsler (1958) reports that for 100 males taking the Wechsler Adult Intelligent Scale (WAIS), the sample mean and variance

A portion of a study by Wechsler (1958) reports that for 100 males taking the Wechsler Adult Intelligent Scale (WAIS), the sample mean and variance on picture completion are X¯ = 9.79 and s = 2.72. Test the hypothesis H0: μ ≥ 10.5 with α = .025.

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