3. (Section 10.2) Suppose you are testing. Ho: = 98 versus H: > 98 The sample is small (n = 14) and the data come from a normal population. The variance, 2, is unknown. " (a) Should you use z or t when finding a critical region for this scenario? (b) Find the critical value(s) corresponding to a = 0.02. (c) State the critical region. (d) You find that the test statistic value is -2.34. Based on your critical region, what decision do you make regarding the null hypothesis (i.e. do you Reject Ho or Do Not Reject Ho)? (e) State your conclusion.