A consumer advocate conducted a test of a popular gasoline additive that was claimed to increase gasoline mileage in cars. For a sample of 15 cars they used the additive and determined how many more miles the car could drive when the additive was added to the gas tank.

For example, a positive 10 would mean that the car drove 10 more miles with the additive whereas a -3 would mean that the car drove 3 fewer miles with the additive.

The table shows a few data values (of how many more miles a car could drive with the additive) along with some summary statistics.

Are there any striking deviations?
A) -5
B) -3
C) 37
D) 65

Question

A consumer advocate conducted a test of a popular gasoline additive that was claimed to increase gasoline mileage in cars. For a sample of 15 cars they used the additive and determined how many more miles the car could drive when the additive was added to the gas tank.

For example, a positive 10 would mean that the car drove 10 more miles with the additive whereas a -3 would mean that the car drove 3 fewer miles with the additive.

The table shows a few data values (of how many more miles a car could drive with the additive) along with some summary statistics.

Are there any striking deviations?
 A) -5 
 B) -3 
 C) 37 
 D) 65

shasha12 · Answer

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