For a two-tail test, the p-value is the probability of obtaining a value for the test statistic as
A)likely as that provided by the sample
B)unlikely as that provided by the sample
C)likely as that provided by the population
D)unlikely as that provided by the population

Question

Quizplus · Accepted Answer

For a two-tail test, we are testing for the possibility of an effect in either direction. Therefore, the p-value represents the probability of obtaining a test statistic as extreme or more extreme than the one observed, in both tails of the distribution. If the p-value is low (e.g. less than 0.05), it means that the observed test statistic is unlikely to occur by chance alone, and we reject the null hypothesis. If the p-value is high (e.g. greater than 0.05), it means that the observed test statistic is likely to occur by chance alone, and we fail to reject the null hypothesis.

For a Two-Tail Test, the P-Value Is the Probability of Obtaining