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To determine if a relationship exists between the miles per gallon (MPG) estimated by the car...

To determine if a relationship exists between the miles per gallon (MPG) estimated by the car manufacturers and the actual MPG recorded by consumers, the following data are collected:

Automakers: 29 28 28 24 27 27 24 38

Consumers: 27 27 25 20 22 25 23 36

a. Calculate the correlation coefficient.

b. Interpret the correlation.

c. Determine the line of best fit.

d. If the manufacturer claims 25 MPG, what should the consumer expect?

e. If the manufacturer claims 30 MPG, what should the consumer expect?

Math   Statistics-And-Probability   
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