A regression model between sales (y in $1000), unit price (x1 in dollars), and television advertisement (x2 in dollars) resulted in the following function: y = 7 - 3x1 + 5x2 For this model, SSR = 3500, SSE = 1500, and the sample size is 18 . If we want to test for the significance of the regression model, the critical value of F at the 5% level of significance is
a. 3.68.
b. 3.29.
c. 3.24.
d. 4.54.
a
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To estimate the accuracy of predicted values, it is useful to calculate the ________
A) analysis of variance B) correlation coefficient C) standard error of estimate D) residual E) precision coefficient
In a system with multiple components, the overall reliability of the system is ______.
A. equal to the reliability of the component with the lowest reliability B. equal to the reliability of the component with the highest reliability C. significantly less than the reliability of the individual components D. significantly more than the reliability of the individual components
The ________ responsibility holds that a business should be responsible for incorporating the end results of its products back into the productive cycle.
Fill in the blank(s) with the appropriate word(s).
Which of the following is not one of the three conditions necessary to be classified as a discretionary activity?
A) the activity produces a change of state B) the change of state was not achievable by preceding activities C) the activity enables other activities to be performed D) the activity increases efficiency