A two-tailed test is conducted at the 5% significance level. What is the left tail percentile required to reject the null hypothesis?
A) 10%
B) 5%
C) 2.5%
D) 95%
E) 97.5%

Name: A two-tailed test is conducted at the 5% significance level. What is the left tail percentile required to reject the null hypothesis? A) 10% B) 5% C) 2.5% D) 95% E) 97.5%
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Question

Quizplus · Accepted Answer

In a two-tailed test at the 5% significance level, the significance is split between the two tails, so each tail has 2.5%.

A Two-Tailed Test Is Conducted at the 5% Significance Level