# Determining the Degree of Freedom

Given the following data

Advertising Price Quantity

January 25 12500 15

February 30 12200 17

March 26 11900 16

April 28 12000 18

May 27 11800 20

June 29 12500 18

July 28 11700 22

August 30 12100 15

September 24 11400 22

October 30 11400 25

November 25 11200 24

December 27 11000 30

January 29 10800 25

February 30 10000 28

March 32 10500 26

April 34 10200 27

Coefficients Standard Error

Intercept 93.58746223 15.1111

X Variable 1 -0.188963455 0.260751

X Variable 2 -0.005805731 0.000895

Sum of Squares

Regression 280.9876

Residual 76.01239

Total 357

a. Determine Degree of Freedom for

Regression_________

Residual___________

Total______________

b. Use the above results and write the regression equation

c. Compute the coefficient of determination and fully interpret its meaning

d. Is the regression model significant? Perform an F test and let a = 0.05

https://brainmass.com/statistics/regression-analysis/determining-degree-freedom-81905

#### Solution Summary

This solution provides assistance determining the degree of freedom for the problem below.