VUCS CApusue to ieau appcai w ave all cicct on ruI SIS! 3. Highway fuel consumpt

Question

VUCS CApusue to ieau appcai w ave all cicct on ruI SIS! 3. Highway fuel consumption amounts (mi/gal) were obtained for cars of three different size categories (small, midsize, large), and the results below were obtained. Source of Variation SSir MSFP-valuc F enit 2112.048 11610 0.0013.555 Between Groups within Groups 173.7 141181 9.651 Total 97.810 20 Use a 0.05 significance level to test the claim that the three size categories have the same mean highway fuel consumption. Does the size of a car appear to affect highway fuel consumption?

Explanation / Answer

H0: There is no significance difference between mean sizes of cars

Ha:There is a significance difference between mean sizes of cars

alpha:5%

Test statictic:

F cal=11.610

Conclusion

P value=0.000

P<0.05 we reject the Ho.

Hence claim is significant.

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