For a two-tailed test at the 0.01 significance level, what is the rejection region when a...
For a two-tailed test at the 0.01 significance level, what is the rejection region when a sample n=25 is drawn from a normal population with unknown standard deviation?
Select one: a. Less than -2.797 and greater than 2.797. b. Less than -2.492 and greater than +2.492. c. Less than -2.797 or greater than +2.797. d. None of the suggested answers are correct. e. Less than -2.492 or greater than +2.492.
Homework Answers
Based on the information provided, the significance level is
, the degrees of freedom are n-1=25-1=24 and the critical value for
a two-tailed test is 
.
The rejection region for this two-tailed test is 
Hence the answer becomes:-
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For a two-tailed test at the 0.01 significance level, what is
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