Emile has calculated a one-tailed z-statistic of -1.97 and wants to see if it is significant...
Emile has calculated a one-tailed z-statistic of -1.97 and wants to see if it is significant at the 5% significance level.
What is the critical value for the 5% significance level? Answer choices are rounded to the hundredths place.
-
-1.64
-
0
-
-2.33
-
-1.04
Homework Answers
Option A) is correct.
-1.64
Z critical value for left tailed test is -1.64(by using Z table)
Decision rule : Reject H0 if Z test statistic value is < Z critical value .
-1.97<-1.64
Therefore, we reject H0 at 5% significance level.
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