Read the t statistic from the t distribution table and circle the correct answer. For a one-tailed test (lower tail) with 22 degrees of freedom at α = .05, the value of t =
A) 1.717.
B) 1.721.
C) -1.717.
D) -1.721.

Question

Quizplus · Accepted Answer

To find the critical value for a one-tailed test with a lower tail, look for the closest value to .05 in the alpha column of the t distribution table. For 22 degrees of freedom, the closest value is .025. The corresponding t value in the table for .025 at 22 degrees of freedom is -1.717. Therefore, the answer is C.

Read the T Statistic from the T Distribution Table and Circle