A large supermarket chain would like to determine the effect of shelf space on the sale of chocolate. A random sample of equal-sized stores were selected and the results are presented below: 5 5 5 10 10 15 15 20 Shelf space (in feet) - X Weekly sales (in thousands of $) - y 23 25 24.5 40.5 43 70 75 85 (a) Determine the the linear regression model. Use a table to summarize the values needed to compute the slope and the intercept of the regression line. (b) Compute R2 and interpret the result in the context of this problem.
