SCENARIO 4 A random sample of monthly cell phone bills from three different providers is listed below. At the 0.05 level of significance, is there a difference in the mean monthly cell phone bills among providers? AT&T Sprint Verizon 48.20 105.02 59.27 60.59 85.73 65.25 72.50 61.95 70.27 55.62 75.69 42.19 89.47 82.11 52.34 Question 20 (2 points)