Techniques and Interpretation for Advanced Statistical Research

Techniques and Interpretation for Advanced Statistical Research.

Suppose you collect data for each of the following pairs of variables. You want to make a .

Identify the response and explanatory variables. What would you expect to see in the scatterplot? Discuss the likely direction, curvature, and variation.

(a) Winter electricity: kilowatts, temperature

(b) Long-distance calls: time (minutes), cost

(c) Air freight: weight of load, fuel consumption

(d) Advertising: length of commercial, number who remember ad

(e) Health: amount of exercise per week (hours), percentage body fat