When testing the observed value of the z-score was found to be −2.15.Then,the p-value for this test would be
A).0158
B).0316
C).9842
D).9684

Question

When testing  the observed value of the z-score was found to be −2.15.Then,the p-value for this test would be
A).0158 
B).0316 
C).9842 
D).9684

Quizplus · Accepted Answer

To calculate the p-value, we need to find the area under the normal distribution curve to the left of the z-score of -2.15. Using a standard normal distribution table or calculator, we find that this area is 0.0316 (or approximately 0.032). Therefore, the p-value for this test is 0.0316 which is the option B.

When Testing the Observed Value of the Z-Score Was