Independent sample t test
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Rental car gasoline prices per gallon were sampled at eight major airports. Date for Hertz and National car rental companies follow (USA today April 4, 2000)
Airport Hertz National
Boston Logan 1.55 1.56
Chicago O'Hare 1.62 1.59
Los Angeles 1.72 1.78
Miami 1.65 1.49
New York (JFK) 1.72 1.51
New York (LaGuardia) 1.67 1.50
Orange County, CA 1.68 1.77
Washington 1.52 1.41
Use a=.05 to test the hypothesis of no difference between the population mean prices per gallon for the4 two companies.
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Solution Summary
The solution provides step by step method for the calculation of t statistic for independent sample test . Formula for the calculation and Interpretations of the results are also included.
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