If the coefficient of determination is a positive value, then the regression equation _____.
a. must have a positive slope
b. must have a negative slope
c. could have either a positive or a negative slope
d. must have a positive y-intercept
Question 2
The EOQ model
a. determines only how frequently to order.
b. considers total cost.
c. minimizes both ordering and holding costs.
d. All of the alternatives are correct.