# KEY921FB - Sheet1 Page 1 BUSINESS 802 FIRST EXAM KEY B FALL...

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Unformatted text preview: Sheet1 Page 1 BUSINESS 802 FIRST EXAM KEY B FALL 1992 MANAGERIAL ECONOMICS MULTIPLE CHOICE QUESTIONS (25 pts, 1pt each) 1. Movement along a demand curve is indicated by the quantity effect of a change in: A. advertising. B. price of other goods. C. income. > D. price. 2. An increase in demand is caused by: A. an increase in price. B. a decrease in price. C. a decrease in advertising. > D. an increase in the price of substitutes. 3. In a simple regression model, the correlation coefficient is: A. equal to one. B. greater than one. C. less than one. > D. the square root of the coefficient of determination. 4. Holding all else equal, the corrected coefficient of determination falls with: A. a decrease in the number of estimated coefficients. B. an increase in sample size. > C. a decrease in R2. D. an increase in the standard error of the estimate. 5. A sample of market data taken at a point in time is a: > A. cross-section. B. statistical series. C. time series. D. stratified sample. 6. The standard deviation of the dependent Y variable after controlling for the influence of all X variables is given by: A. R2 B. > C. S.E.E. D. . 7. A measure of statistical significance for explained variation is given by the: A. t-statistic. > B. F-statistic. Sheet1 Page 2 C. coefficient of determination. D. corrected coefficient of determination. 8. Multicollinearity is caused by: A. a linear XY relation. B. a log-linear XY relation. > C. high correlation among the X variables. D. high correlation between Y and at least one X variable.9. Heteroskedasticity is produced by: A. normally distributed residuals. B. randomly distributed residuals. > C. nonconstant variance in the disturbance term. D. autocorrelation. 10. Central tendency is measured by the: > A. mode. B. range. C. variance. D. standard deviation. 11. In a uniform distribution, the mode: A. is greater than the mean. > B. equals the median. C. is less than the mean. D. is less than the median. 12. If a distribution is skewed upward, the median: A. equals the mean. B. is greater than the mean. > C. is less than the mean. D. is greater than the average. 13. The most common sample observation is the sample A. average. B. mean. C. median. > D. mode. 14. Relative dispersion is measured by the population: > A. coefficient of variation. B. range. C. standard deviation. D. variance. 15. Sample variance is the: Sheet1 Page 3 A. square root of the average deviation from the sample mean. B. square root of the average squared deviation from the sample mean. > C. average squared deviation from the sample mean. D. average deviation from the sample mean. 16. The standard deviation is always: A. greater than the range. B. less than the coefficient of variation....
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KEY921FB - Sheet1 Page 1 BUSINESS 802 FIRST EXAM KEY B FALL...

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