Question

Jason Lowrey is a frequent traveler between Los Angeles and San Francisco. For the past month, he wrote down the flight times for three different airlines.  

Use the .05 significance level and the six-step hypothesis-testing process to check if there is a difference in the mean flight times among the three airlines. Write a statement to Mr. Lowrey explaining your results. Do your work in Excel.

Western Air	NW Skyway	Skyliner
52	51	50
55	46	53
60	52	48
58	48	62
52	51	53
49	55	49
49	47	50
51	47	49
	50	54
	60	54
	51	51
	49	49
		49
		50

Answer 1

for the given data using Anova single factor Excel we get output as

Anova: Single Factor
SUMMARY
Groups	Count	Sum	Average	Variance
Western Air	8	426	53.25	16.5
NW Skyway	12	607	50.58333	15.17424
Skyliner	14	721	51.5	13.19231
ANOVA
Source of Variation	SS	df	MS	F	P-value	F crit
Between Groups	34.31863	2	17.15931	1.171886	0.32313	3.304817
Within Groups	453.9167	31	14.64247
Total	488.2353	33