How does the speed at which a car drives affect fuel economy? Owners of a taxi fleet,
Question:
a) Interpret the slope of this line in context.
b) Explain why its silly to attach any meaning to the y-intercept.
c) When this model predicts high Fuel Efficiency, what can you say about those predictions?
d) What Fuel Efficiency does the model predict when the car is driven at 50 mph?
e) What was the actual Fuel Efficiency when the car was driven at 45 mph?
f) Do you think there appears to be a strong association between Speed and Fuel Efficiency? Explain.
g) Do you think this is the appropriate model for that association? Explain.
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Related Book For
Business Statistics
ISBN: 9780321925831
3rd Edition
Authors: Norean Sharpe, Richard Veaux, Paul Velleman
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