Homework SourseFor a onetailed hypothesis test the critical z value of the
For a one-tailed hypothesis test, the critical z value of the test statistic is -2.33. Which of the following is true about the hypothesis test?
| ? = 0.05 for a lower-tailed test | |
| ? = 0.01 for a lower-tailed test | |
| ? = 0.05 for an upper-tailed test | |
| ? = 0.01 for an upper-tailed test |
Solution
Given a=0.01, the critical value is Z(0.01)=-2.33 (from standard normal table)
Answer: ? = 0.01 for a lower-tailed test
