When testing the observed value of the Z test statistic was found to be - 2.13.The p-value for this test is
A)0.0166.
B)0.0332.
C)0.9668.
D)0.9834.

Question

When testing  the observed value of the Z test statistic was found to be - 2.13.The p-value for this test is
A)0.0166. 
B)0.0332. 
C)0.9668. 
D)0.9834.

Quizplus · Accepted Answer

The p-value for a two-tailed Z-test with a Z-value of -2.13 is the probability of observing a Z-value more extreme than -2.13. Using a standard normal distribution table or calculator, we find that the area to the left of -2.13 is 0.0166, so the area to the right is also 0.0166. Therefore, the p-value for this test is 0.0166 + 0.0166 = 0.0332, which is answer choice B.

When Testing the Observed Value of the Z Test