M httpeto oncomOnline Sh p d M Quiz on chapter 14 The follow

M http//eto on.com-Online Sh... p d M Quiz on chapter 14 The following regression output was obtained from a sudy of architectural firms. The dependent variable is the total amount of fees in milions of dolars. Constant 10.737 Xi 0.242 0.060 403 -0.242 0.0570.033 1.73 0.644 0.185 0.106 -1.75 1.974 544 0.101 0.169 3.81 -2.4 X. Xs X4 MS F Regression Residual Error 52 2647.38 57.55 Total 5 3710.00 742.00 15 57 6357.38 X, is the number of architects employed by the company 2 is the number of engineers employed by the company Xs is the number of years involved with health care projects. X4 is the number of states in which the firm operates X- is the percent of the firm\'s work that is health care-related. a. Write out the regression equation. (Round your answers to 3 decimal places. Negative amounts should be indicated by a minus sign.) b. How large is the sample? How many independent variables are there? Sample n Independent variables

Solution

a.The regression equation is:

Yhat=10.737+0.242X1-0.242X2+0.057X3+0.644X4-0.185X5

b.Sample size=n=57+1=58

Independent variables k=6

c.Reject H0 if F>F0.05,57