Kurt's Hardware Store
Y
Year Demand (units) Advertising Snowfall (inches)
1 41 $ 4,000 82
2 38 $ 3,500 64
3 26 $ 1,800 52
4 43 $ 2,800 60
5 33 $ 3,000 58
6 30 $ 2,400 50
7 34 $ 2,600 60
8 37 $ 2,200 53
935 $ 2,600 65
a. Develope a multiple regression model to predict the demand for snowblowers based on the adverstising budget and the amount of snowfall.
b. What percentage of the demand variations is explained by this expanded model?
c. What is the predicted demand for snow blowers with and advertising budget of $2,600 and expected snowfall of 65 inches?
y= 35 units
X1X2
The coefficient of determation R2 is: 0.46
𝑦=𝑏_0+𝑏_1 𝑥_1+𝑏_2 𝑥_2
𝑦=17.76+0.004𝑥_1+0.10𝑥_2
