14. The value of an independent variable from the prior period is referred to as aA. lagged variable.*B. dummy variable.C. predictor variable.D. categorical variable.15. Demand for a product and the forecasting department's forecast (naïve model) for a product areshown below. Compute the mean squared error.Actual Demand12151418Period1A. 2.67B. 4.67C. 5.33D. 8.67*234Forecasted Demand121514

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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today's and yesterday's prices. Price changes were examined for 109 days. A financial theory states that the price change of today for a stock must be independent of yesterday's price change. Test the hypothesis that daily stock price changes for this stock are independent. Let a = 0.10. Change Today Day Up No Change Down Up No Change 8 10 15 9. Down 14 16 Determine the null and alternative hypotheses for the test. Choose the correct answer below. O A. Ho: Today's price change and yesterday's price change have equal proportions. HA Today's price change and yesterday's price change have non-equal proportions. O B. Ho: Today's price change and yesterday's price change are independent. HA: Today's price change and yesterday's price change are not independent. O C. Ho: Today's price change and yesterday's price change have non-equal proportions. HA Today's price change and yesterday's price change have equal proportions. O D. Ho: Today's price change and yesterday's price change are not…
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14. The value of an independent variable from the prior period is referred to as a A. lagged variable.* B. dummy variable. C. predictor variable. D. categorical variable.