A test of $H _ { 0 } : \mu = 57$ versus $H _ { 1 } : \mu \neq 57$ is performed using a significance level of $\alpha = 0.01$. The value of the test statistic is $z = - 2.43$.
If the true value of $\mu$ is 55 , does the conclusion result in a Type I error, a Type II error, or correct decision?
A) Type II error
B) Type I error
C) Correct decision

Question

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The Answer of A test of $H _ { 0 } : \mu = 57$ versus $H _ { 1 } : \mu \neq 57$ is performed using a significance level of $\alpha = 0.01$. The value of the test statistic is $z = - 2.43$.
If the true value of $\mu$ is 55 , does the conclusion result in a Type I error, a Type II error, or correct decision?
A) Type II error
B) Type I error
C) Correct decision

A Test Of H0:μ=57H _ { 0 } : \mu = 57H0​:μ=57

A Test Of $H _ { 0 } : \mu = 57$