b. How many dependent and independent variable are there?
c. What is the number 0.286 called?
d. As age increases by one year, how much does estimated
performance on the new machine increase?
e. Carl Knox applied for job at photo works? He has been in
business for 6 yrs and scored 280 on the mechanical aptitude
test Carl’s prior on-the-job performance rating is 97, and he is
35 years old
Ex 6) Consider the ANOVA table that follows
a.1. Determine the standard error of estimate
a.2. About 95% of the residuals will be between what two values?
b.1. Determine the coefficient of multiple determination.
b.2. Determine the percentage variation for the independent variables.
c. Determine the coefficient of multiple determinations, adjusted for
the degree of freedom
Ex 8) The following regression output was obtained from a study of
architectural firms. The dependent variables is the total amount of
fees in millions of dollars.
X1 is the no of architects employed by the company
X2 is the no of engineers employed by the company
X3 is the no of years involved with health care projects
X4 is the no of states in which the firm operates
X5 is the percent of the firm’s work that is health care-related
a.
Write out the regression equation