Jacob lee is a frequent traveler between LA and San Francisco. For the past month, he wrote down the flight times on the three different airlines, The results are:51 50 52 51 53 55 52 52 60 42 62 64 51 53 61 57 49 49 47 50 49 47 49 50 58 60 54 54 51 49 49 48 49 48 50

Use the .05 significance level and the 5 step hypothesis testing process to check if there is a difference in the mean flight times among the three airlines.