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Objective of the test of hypothesis

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General Motors and Ford have produced cars with the same size diesel engine. We are interested in determining whether or not there is a significant difference in the gas consumption of the two models of automobiles. A random sample of 7 cars from each manufacturer is selected, and 7 drivers are selected to drive one of GM and one of Ford cars for a specified distance implying that driver 1 drove the first GM car and the first Ford car, driver 2 drove the second GM car and the second Ford car, driver 3 drove third GM car and the third Ford car, and so on. The MPG (miles per gallon) data is recorded and summarized in the following table:

Driver GM(MPG) FORD(MPG)

1 29 26

2 25 23

3 26 27

4 25 25

5 22 24

6 24 23

7 27 25

Which of the following is a correct statement if the objective of the test of hypothesis is to determine whether there is a difference in the gas consumption of the two models?

Select one:

A. Ho: GM = Ford

B. Ho: D = 0 (where D is the mean population difference)

C. Ho: GM  Ford

D. Ho: D  0

E. None of the above answers is correct.

Reference no: EM132474144

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