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oyota USA is studying the effect of regular versus high-octane gasoline on the fuel economy of...

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Statistics

oyota USA is studying the effect of regular versus high-octanegasoline on the fuel economy of its new high-performance,3.5-liter, V6 engine. Ten executives are selected and asked tomaintain records on the number of miles traveled per gallon of gas.The results are:

a. STATE THE NULL HYPOTHESIS AND ALTERNATE HYPOTHESIS

Miles per GallonMiles per Gallon
ExecutiveRegularHigh-OctaneExecutiveRegularHigh-Octane
Bowers2528Rau3840
Demars3331Greolke2929
Grasser3135Burns4237
DeToto4544Snow4144
Kleg4247Lawless3044

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