sample mean is 25, and the population standard deviation is 4. Conduct the following test of hypothesis using the 0.02 significance level.   H0: μ ≤ 23 H1: μ > 23   Is this a one- or two-tailed test?  What is the decision rule? One-tailed test, Reject Ho when z > 2.054 Two-tailed test, Reject Ho when z ≤ 2.054 One-tailed test, Accept Ho when z > 2.054 Two-tailed test, Accept Ho when z

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