Assume that z is the test statistic and calculate the value of z_ for each of the
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b. Ho: μ = 120, σ = 23, n = 25,T = 126.2 Но: μ-182, σ--3.7, n 140.ī 18.93 Ho: μ = 81, σ = 13.3, n = 50,T = 79.6 с. d.
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