In: Economics
Estimate House Paints Demand for Sherwin-Williams
Table: Sherwin-Williams Company new Data |
||||
Observations |
Sales |
Promotional Expenditures |
Selling Price |
Disposable Income |
i |
y |
A |
P |
M |
1 |
160 |
100 |
15 |
19 |
2 |
200 |
160 |
14 |
17.5 |
3 |
140 |
50 |
16.5 |
14 |
4 |
190 |
190 |
14.5 |
20 |
5 |
130 |
90 |
17 |
15.5 |
6 |
160 |
70 |
16 |
14.5 |
7 |
200 |
140 |
15 |
21.5 |
8 |
150 |
110 |
18 |
18 |
9 |
210 |
200 |
12 |
18.5 |
10 |
190 |
100 |
15.5 |
20 |
Total |
1730 |
1210 |
153.5 |
178.5 |
Mean |
173 |
121 |
15.35 |
17.85 |
1) What is regression equation for paint sales using multiple linear regression model? Please include regression results using Excel?)
2) If A=180, P=$14, and M=20, what is an approximate 95 percent prediction interval for paint sales?