A two-tailed hypothesis test of the population mean or population proportion has ________.
A) only one critical value
B) two critical values,both positive
C) two critical values,both negative
D) two critical values,one positive and one negative

Question

Quizplus · Accepted Answer

A two-tailed hypothesis test has two critical values, one positive and one negative, because the null hypothesis can be rejected in either direction.

A Two-Tailed Hypothesis Test of the Population Mean or Population