Use the 05 significance level and the five-step

Reference no: EM13620093

Jacob Lee is a frequent traveler between Los Angeles and San Francisco. For the past month, we wrote down the flight times on three different airlines. The results are:

Goust	Jet red	Cloudtran
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

a. Use the .05 significance level and the five-step hypothesis-testing process to check if the there is a difference in the mean flight times.

b. Develop a 95% confidence interval for the difference in the means between Goust and Cloudtran.

Reference no: EM13620093

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