In a right-tailed test comparing two proportions,the test statistic was zcalc = +1.81.The p-value is
A).9649
B).0351
C).4649
D)Must know n to answer.

Question

Quizplus · Accepted Answer

Since this is a right-tailed test, we are interested in the area to the right of the test statistic. Using a standard normal distribution table or calculator, we can find the probability of obtaining a z-score of 1.81 or greater is approximately 0.0351. This is the p-value for the test, and it represents the probability of obtaining a test statistic as extreme as the one observed (or more extreme) if the null hypothesis is true. Therefore, we reject the null hypothesis if the significance level is smaller than this p-value.

In a Right-Tailed Test Comparing Two Proportions,the Test Statistic Was