The decision to reject the null hypothesis in a statistical test is made when ______. A) the researcher cannot conclude that the null is true B) p alpha D) the researcher initially sets the alpha level

Question

The decision to reject the null hypothesis in a statistical test is made when ______.
A) the researcher cannot conclude that the null is true
B) p < alpha
C) p > alpha
D) the researcher initially sets the alpha level

Quizplus · Accepted Answer

When p, the probability of obtaining results as extreme as the observed results assuming the null hypothesis is true, is less than the predetermined alpha level (usually 0.05), we reject the null hypothesis and conclude that there is a statistically significant difference between the groups being tested.

The Decision to Reject the Null Hypothesis in a Statistical