Select the correct answer

The average local cell phone monthly bill is $50.07. A random sample of monthly bills from three different providers is listed below. At a = 0.05 is there a difference in mean bill amounts among providers? Provider X Provider Y Provider Z 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 The calculated F-value is O A. 6.93 O B. 63.08 O C. 3.68 O D. 3.89