Rental car gasoline prices per gallon were sampled at eight major airports. Data for Hertz and National car rental companies follow (USA Today,April 4, 2000).
Airport
Hertz
National
Boston Logan
1.55
1.56
New York (JFK)
1.72
1.51
Chicago O’Hare
1.62
1.59
New York (LaGuardia)
1.67
1.50
Los Angeles
1.78
Orange County, CA
1.68
1.77
Miami
1.65
1.49
Washington (Dulles)
1.52
1.41
Useα= .05 to test the hypothesis of no difference between the population mean prices per gallon for the two companies.
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