In a normal approximation to the sign test, the standardized test statistic is calculated as z = -1.58. To test the alternative hypothesis that the location of population 1 is to left of the location of population 2, the p-value of the test is:
A) 0.1142
B) 0.2215
C) 0.0571
D) 0.2284

Question

Quizplus · Accepted Answer

The p-value for a left-tailed test (alternative hypothesis that population 1 is to the left of population 2) with z = -1.58 is found by looking up the cumulative probability from the standard normal distribution. This value corresponds to the area to the left of z = -1.58, which is approximately 0.0571.

In a Normal Approximation to the Sign Test, the Standardized