A decision rule ______.

A) specifies the values of a statistic that lead to rejection of the null hypothesis
B) states the null and alternative hypotheses
C) specifies when researchers can say their hypothesis has been proved
D) defines what is meant by a "low" probability

A decision rule specifies the values of a statistic that lead to rejection of the null hypothesis, indicating that the alternative hypothesis is a better fit for the data. It does not state the null and alternative hypotheses, determine when researchers can say their hypothesis has been proved, or define what is meant by a "low" probability.