The following regression output was obtained from a study of architectural firms. the dependent variable is the total amount of fees in millions of dollars. predictor coefficient se coefficient t p-value constant 7.031 3.086 2.278 0.010 x1 0.231 0.193 1.197 0.000 x2 − 1.108 0.572 − 1.937 0.028 x3 − 0.392 0.154 − 2.545 0.114 x4 0.550 0.317 1.735 0.001 x5 − 0.057 0.025 − 2.280 0.112 analysis of variance source df ss ms f p-value regression 5 2,219.34 443.9 9.85 0.000 residual error 49 2,208.98 45.08 total 54 4,428.32 x1 is the number of architects employed by the company. x2 is the number of engineers employed by the company. x3 is the number of years involved with health care projects. x4 is the number of states in which the firm operates. x5 is the percent of the firm’s work that is health care−related. write out the regression equation.
Answers: 1
Business, 21.06.2019 17:40, hallmansean04
Sodas in a can are supposed to contain an average of 12 ounces. this particular brand has a standard deviation of 0.1 ounces, with an average of 12.1 ounces. if the can's contents follow a normal distribution, what is the probability that the mean contents of a six pack are less than 12 ounces?
Answers: 2
Business, 22.06.2019 16:00, hany90
Arnold rossiter is a 40-year-old employee of the barrington company who will retire at age 60 and expects to live to age 75. the firm has promised a retirement income of $20,000 at the end of each year following retirement until death. the firm's pension fund is expected to earn 7 percent annually on its assets and the firm uses 7% to discount pension benefits. what is barrington's annual pension contribution to the nearest dollar for mr. rossiter? (assume certainty and end-of-year cash flows.)
Answers: 2
The following regression output was obtained from a study of architectural firms. the dependent vari...
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