Find the critical value and rejection region for the type of t-test with level of significance α $\alpha$ and sample size n. Left-tailed test, α $\alpha$ = 0.1, n = 22 A) $t _ { 0 } = - 1.323 ; t

Question

Find the critical value and rejection region for the type of t-test with level of significance α $\alpha$ and sample size n. Left-tailed test, α $\alpha$ = 0.1, n = 22
A) $t _ { 0 } = - 1.323 ; t < - 1.323$
B) $t _ { 0 } = - 1.321 ; t < - 1.321$
C) $t _ { 0 } = 1.323 ; t > 1.323$
D) $t _ { 0 } = - 2.518 ; t < - 2.518$

Quizplus · Accepted Answer

For a left-tailed t-test with α = 0.1 and n = 22, the degrees of freedom (df) is n - 1 = 21. Looking up the critical value in a t-distribution table for df = 21 and α = 0.1, we find the critical value is approximately -1.323. The rejection region is t < -1.323.

Find the Critical Value and Rejection Region for the Type α\alphaα

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