A Test Of $H _ { 0 } : \mu = 49$

question 90

Multiple Choice

A test of $H _ { 0 } : \mu = 49$ versus $H _ { 1 } : \mu < 49$ is performed using a significance level of $\alpha = 0.05$ . The value of the test statistic is $z = - 1.70$ .
If the true value of $\mu$ is 45 does the conclusion result in a Type I error, a Type II error, or ह correct decision?

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

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