5.(20 marks) Newton Company used linear regression analysis to obtain the following output: Payroll Department Cost Explained by Number of Employees Constant $5,800 Standard error of Y estimate 630 r2 0.8924 Number of observations 20 X coefficient $1.902 Standard error of coefficient 0.0966 Required: What is the coefficient of determination? Comment on the goodness of fit. b. How would set up the regression equation? Show it with analysis