ITh e following information applies to the questions displayed below. Martin Mot

Question

ITh e following information applies to the questions displayed below. Martin Motors has In stock three cars of the same make and model. The Sales Manager would lke to compare the gas consumption of the three cars (labeled car A, car B, and car C) using four different types of gasoline. For each trial, a gallon of gasoline was added to an empty tank, and the car was driven until it ran out of gas. The following table shows the number of miles driven In each trial. Distance (mles) Types of Gasoline Regular Super regular Unleaded Premlum unleaded Car A Car B Car C 22.1 20.922.0 19.0 19.2 20.4 20.8 20.4 21.1 19.7 20.2 20.7

Explanation / Answer

for treatments ; degree of freedom are (n-1=2) and (ak=(3-1)*(4-1)=6); for whcih at 0.1 level critical F =3.46

tehrefore for treatments (cars) reject Ho if F>3.46

for blocks ; degree of freedom are (n-1=3) and (ak=(3-1)*(4-1)=6); for whcih at 0.1 level critical F =3.29

tehrefore for blocks reject Ho if F>3.29

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