[The following information applies to the questions displayed below.] Martin Mot

Question

[The 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 like 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.

1.

Required information

H0: 1 2 3

H0: 1 = 2 = 3

2.

Required information

Not all means are the same.

All means are the same.

3.

Required information

H0: 1 2 3 4

H0: 1 = 2 = 3 = 4

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Martin Motors has in stock three cars of the same make and model. The Sales Manager would like 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.

Explanation / Answer

1.

Null hypothesis is :

H0: 1 = 2 = 3

2.

Alternative hypothesis: Not all means are the same.

3.

Null hypothesis:H0: 1 = 2 = 3 = 4

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