DATASET F:

Fuel efficiency(in miles per gallon): 22,27,26,15,23,17

Weight( in pounds) : 2473,2581,2174,2583,3698,3946

The following data (DATASET F) represents the fuel efficiency and weights of new model cars with automatic transmissions.

i) Is the relationship a positive one or a negative one? Explain how you can tell and what this means in terms of fuel efficiency and weight?

ii) Identify the dependent and independent variables.

iii) In one or two complete sentences, what is the practical interpretation of the slope of the least squares line in terms of fuel efficiency and weight?

iv) How will you predict the dependent variable? Clarify in your own words.

v) Make an explanation on how better is your model to predict the dependent variable