For Exercises 19–22, a confidence interval for is given. Use the confidence interval to test, using level of significance , whether differs from each of the indicated hypothesized values.
21. A 90% confidence interval for is (100, 200). Hypothesized values are
9.6.21
| Value of | Form of hypothesis test, with | Where lies in relation to 90% confidence interval (100, 200) | Conclusion of hypothesis test | |
|---|---|---|---|---|
| (a) | 150 | Inside | Do not reject | |
| (b) | 250 | Outside | Reject | |
| (c) | 0 | Outside | Reject |