If an analysis of the difference between the experimental group and the control group indicates that "p

Question

If an analysis of the difference between the experimental group and the control group indicates that "p < 0.05," which of the following is true?​
A)Random results would produce a difference of that size less than 5 percent of the time.​
B)​There is less than a 5 percent chance that the experimenter made any mistakes in the research.
C)​Less than 5 percent of those in the control group exceeded the mean for the experimental group.
D)​The difference between the two groups is less than 5 percent.

Quizplus · Accepted Answer

A p-value of less than 0.05 means that there is less than a 5 percent chance that the difference between the experimental and control groups is due to chance alone. In other words, if the experiment were repeated many times with random results, a difference of that size or larger would be observed less than 5 percent of the time.

If an Analysis of the Difference Between the Experimental Group