Many MIS have separate data banks for
a. sales data.
b. market data.
c. product data.
d. All of the above are part of many MIS.
e. MIS have only one data bank.
Question 2
Which of the assumptions listed below are necessary in order for the coefficients in a partial regression equation to
be interpreted as the average change in the criterion variable associated with a unit change in the appropriate
predictor variable holding other predictor variables constant?
a. The predictor variables must be correlated.
b. The variance among predictor variables must be equal.
c. The criterion variable must be normally distributed.
d. The predictor variables must be uncorrelated.
e. None of the above are necessary assumptions.
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Use the product rule to find derivative