A digital camcorder repair service has set a goal not to exceed an average of 5 working days from the time the unit is brought in to the time repairs are completed. A random sample of 12 repair records showed the following repair times (in days): 5, 6, 7, 7, 7, 5, 4, 6, 6, 5, 6, 7. x g=5.9167, ( = 0.9962. 22. Which are the hypotheses? a. H0: 5, H1: > 5 b. H0: 5, H1: < 5 c. H0: = 5, H1: 5 d. H0: < 5, H1: 5 23. At the 5 percent level of significance ( = 0.05). What are the decision rules? a. Reject H0 if Zcalc > 1.645. Otherwise, do not reject H0 b. Reject H0 if tcalc < -1.796. Otherwise, do not reject H0 c. Reject H0 if tcalc > 1.796. Otherwise, do not reject H0 d. Reject H0 if tcalc > 2.201 or tcalc < -2.201. Otherwise, do not reject H0 24. What is the decision? a. Reject H0, the goal is not being met. b. Reject H0, the goal is being met. c. Fail to reject H0, the goal is not being met. d. Fail to reject H0, the goal is being met