A one-tailed hypothesis for a population mean with a significance level equal to .05 will have a critical value equal to z = .45.

Name: A one-tailed hypothesis for a population mean with a significance level equal to .05 will have a critical value equal to z = .45.
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A one-tailed hypothesis test with a significance level of .05 typically has a critical value of approximately z = 1.645 for the positive tail or z = -1.645 for the negative tail, not z = .45.

A One-Tailed Hypothesis for a Population Mean with a Significance