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.

Question 9.342

19. A 95% confidence interval for is (1, 4). Hypothesized values are

  1. 0
  2. 2
  3. 5

9.6.19

Value of Form of hypothesis test, with Where lies in relation to 95% confidence interval (1, 4) Conclusion of hypothesis test
(a) 0 Outside Reject
(b) 2 Inside Do not reject
(c) 5 Outside Reject