Given a normal distribution with σ = 3, we want to test the hypothesis H₀: μ = 20. We find that the sample mean is 21. The test statistic is: A)1.000 B)1.645 C)1.960 D)impossible to find without more information.

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The Answer of Given a normal distribution with σ = 3, we want to test the hypothesis H₀: μ = 20. We find that the sample mean is 21. The test statistic is: A)1.000 B)1.645 C)1.960 D)impossible to find without more information.

Given a Normal Distribution with σ = 3, We Want