Share
Explore BrainMass

Regression analysis

12.4
a. Make a scatter plot.
b. Calculate correlation coefficient.
c. Calculate coefficient of determination.
d. Test the significance of the correlation, r at .05 significant level. Show 5 step analysis.

Moviegoer Spending ($) on Snacks Movies
Age (X) Spent (Y)
30 2.85
50 6.50
34 1.50
12 6.35
37 6.20
33 6.75
36 3.60
26 6.10
18 8.35
46 4.35

12.8
(a) Interpret the slope of the fitted regression, Sales = 842 − 37.5 Price.
(b) If Price = 20, what is the prediction for Sales?
(c) Would the intercept be meaningful if this regression represents DVD sales at Blockbuster?

Attachments

Solution Summary

The solution provides step by step method for the calculation of regression model. Formula for the calculation and Interpretations of the results are also included.

$2.19