Researchers at Purdue University and Wichita State University found that airlines are doing a better job of getting passengers to their destinations on time. AirTran Airways and Southwest Airlines were among the leaders in on-time ar 88% of their flights arriving on time. But for the 12% of flights that were delayed, how many minutes were these flights late? Sample data showing the number of minutes that delayed flights were late are provided In the file named Air for both airlines. Assume population variances are unknown and unequal. AirTran Southwest 34 59 43 30 45 64 42 33 66 37 42 85 30 48 105 45 28 38 85 110 50 10 26 70 75 45 33 50 63 52 83 78 27 70 47 35 33 64 65 27 90 38 52 76 (a) Formulate the hypotheses that can be used to test for a difference between the population mean minutes late for delayed flights by these two airlines. (Let , = population mean minutes late for delayed Airtran flights and #2 = popu minutes late for delayed Southwest flights.) Oho' #1 - H2 = 0 Ho: H1 - H2 20 H H1 - H2 0 HO: Hy - H2