contains a sample of data from delayed flights showing the number of minutes each delayed flight was late for two different airlines, Delta and Southwest. Click on the datafile logo to reference the data. DATA 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. 1 = population mean minutes late for delayed Delta flights 2 = population mean minutes late for delayed Southwest flights H 0 : 1 2 0.