Use the data in problem 422 and develop a regression model t
Use the data in problem 4-22 and develop a regression model to predict selling price based on the square footage and number of bedrooms. Use this to predict the selling price of 2000 square foot house with 3 bedrooms. Compare this model with the model in problem 4-22. Should the number of bedrooms be included in the model? WHY OR WHY NOT?
| Selling Price | Sq. Footage | Bedrooms | Age (Yrs) |
| $ 84,000 | 1670 | 2 | 30 |
| $ 79,000 | 1339 | 2 | 25 |
| $ 915,000 | 1712 | 3 | 30 |
| $ 12,000 | 1840 | 3 | 40 |
| $ 127,500 | 2300 | 3 | 18 |
| $ 132,500 | 2234 | 3 | 30 |
| $ 145,000 | 2311 | 3 | 19 |
| $ 164,000 | 2377 | 3 | 7 |
| $ 155,000 | 2736 | 4 | 10 |
| $ 168,000 | 2500 | 3 | 1 |
| $ 172,500 | 2500 | 4 | 3 |
| $ 174,000 | 2479 | 3 | 3 |
| $ 175,000 | 2400 | 3 | 1 |
| $ 177,500 | 3124 | 4 | 0 |
| $ 184,000 | 2500 | 3 | 2 |
| $ 195,500 | 4062 | 4 | 10 |
| $ 195,000 | 2854 | 3 | 3 |
Solution
