Using the z table, find the critical value (or values) for an = 0.12 right-tailed test.
A) 0.59
B) 0.78
C) 1.18
D) 1.56

Question

Using the z table, find the critical value (or values) for an  = 0.12 right-tailed test.
A) 0.59 
B) 0.78 
C) 1.18 
D) 1.56

Quizplus · Accepted Answer

To find the critical value for a right-tailed test at a significance level of 0.12, we need to find the z-score that corresponds to the area of 0.88 (since the area in the right tail corresponds to the probability of rejecting the null hypothesis). Looking up 0.88 in the z-table, we find that the closest value is 1.18. Therefore, the critical value is 1.18. None of the other choices are correct critical values for this test.

Using the Z Table, Find the Critical Value (Or Values)