A Test Of $H _ { 0 } : \mu =$

question 62

Multiple Choice

A test of $H _ { 0 } : \mu =$ 45 versus $H _ { 1 } : \mu < 45$ is performed using a significance level of $\alpha$ =0.01. The value of the test statistic is z=-2.24.
If the true value of $\mu$ is 45 , does the conclusion result in a Type I error, a Type II error, or a correct decision?

• A) Type I error
• B) Correct decision
• C) Type II error

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