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Homework answers / question archive / A consumer research agency tested two popular makes of automobiles with imilar weight and horsepower
A consumer research agency tested two popular makes of automobiles with imilar weight and horsepower. Eleven car As provided a mean miles per gallon of 24.2 with an 5 of 1.40, and 11 car Bs provided a mean miles per gallon of 26.30 with an S f 1.74. Using a two-tailed test at the .05 level, test the null hypothesis that there was 0 significant difference between the mean gasoline milege of the two makes of cars.
