With α = .01 the two-tailed critical region for a t test using a sample of n = 16 subjects would have boundaries of ____.
A)t = ±2.602
B)t = ±2.583
C)t = ±2.947
D)t = ±2.921

Question

With α = .01 the two-tailed critical region for a t test using a sample of n = 16 subjects would have boundaries of ____.​
A)​t = ±2.602
B)​t = ±2.583
C)​t = ±2.947
D)​t = ±2.921

Quizplus · Accepted Answer

For a two-tailed t-test with α = .01 and n = 16 subjects, the degrees of freedom (df) would be n - 1 = 15. Looking up the critical t value in a t-distribution table for df = 15 and α = .01 (two-tailed), the critical t value is approximately ±2.947.

With α = 01 the Two-Tailed Critical Region for a T Test Using