The two areas at the end of a normal curve that indicate low probability values if the null hypothesis is true are called
A)a two-tailed test.
B)the critical region.
C)the area of the true null.
D)the significance level or alpha.

Question

Quizplus · Accepted Answer

The critical region is the area at the tails of the distribution where the null hypothesis would be rejected if the test statistic falls within those regions. These regions are typically determined by the significance level or alpha, which is often set at 0.05 for hypothesis testing. Therefore, the two areas at the end of a normal curve that indicate low probability values if the null hypothesis is true are referred to as the critical region.

The Two Areas at the End of a Normal Curve