All the efficiency money can buy 2011 A sample of 84 model-2011 cars from an online
Chapter 26, Problem 50(choose chapter or problem)
All the efficiency money can buy 2011 A sample of 84 model-2011 cars from an online information service was examined to see how fuel efficiency (as highway mpg) relates to the cost (Manufacturers Suggested Retail Price in dollars) of cars. Here are displays and computer output: Dependent variable is MPG R-squared = 0.0216% s = 3.54 Variable Coefficient SE(Coeff) t-Ratio P-Value Intercept 36.514 1.496 24.406 60.0001 Slope -8.089E -6 6.439E -5 -0.1256 0.900 a) State what you want to know, identify the variables, and give the appropriate hypotheses. b) Check the assumptions and conditions. c) If the conditions are met, complete the analysis.
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