The estimated regression equation for a model involving two independent variables and 10 observations follows. y^=29.1270+0.5906x1+0.4980x2

What is the predicted value of dependent variable if x1 = 180 and x2 = 310

The estimated regression equation for a model involving two independent variables and 10 observations follows. y^=29.1270+0.5906x1+0.4980x2

What best describes the interpretation of the coefficient b1=0.5906?

a. If x1 increases by 1 unit, then the estimated value for y increases by 0.5906, holding the value for x2 constant.

b. If x1 and x2 both increases by 1 unit, then the estimated value for y increases by 0.5906

c. If x2=0 and x1=1, then the estimated value for y is 0.5906.

d. If the estimated value for y increases by 1 unit, that means that x1 increased by 0.5906 units

Suppose you estimate a model of sales(y) using inventory investment(x1) and advertising expenditures (x2) as explanatory variables.

From a survey of 10 stores, estimate

y^=10x+8x2

You find SST = 16,000 and SSR = 12,000

Find the multiple coefficient of determination, R2