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) .9864
E) .9964

Question

When testing   , the observed value of the z-score was found to be -2.15. Then, the p-value for this test would beA)  .0158B)  .0316C)  .9842D)  .9864E)  .9964

Felicia Shandor · Accepted Answer

Final Answer : B, Explanation :  The p-value is equal to the area under the curve to the left of the observed z-score. Looking at a standard normal distribution table or using a calculator, the area to the left of -2.15 is approximately 0.0316. Therefore, the p-value for this test is 0.0316 or 3.16%. The best choice for the answer is B.

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) .9864
E) .9964

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