Multiple Choice A quadratic trend equation was estimated from monthly sales of t
ID: 3229579 • Letter: M
Question
Multiple Choice
A quadratic trend equation was estimated from monthly sales of trucks in the United States from July 2006 to July 2011. The estimated trend is y_t = 106 + 1.03 t + 0.048 t^2^, where y_t units are in thousands. From this trend, how many trucks would be sold in July 2012? A. About 308, 419 B. About 524, 889 C. About 436, 982 D. About 223, 831 Which data would be measured over an interval of time as opposed to at a point in time? A. Toyota's total revenue for fiscal 2010 B. Toyota's salaried employee head count at the end of June 2010 C. Toyota's short-term indebtedness at the end of fiscal 2010 D. Toyota's inventory of unsold vehicles on December 31, 2010 Which of the following best describes the decomposition modeling approach to forecasting? A. The values of certain variables are used to predict the values of others. B. Series are separated into trend, seasonal, irregular, and cyclical components. C. forecasts are based on an average of recent values. D. Sophisticated models such as regression with binaries are preferred.Explanation / Answer
13)sale =106+1.03*73+0.048*(73)2 =436.982
option C is correct
14)option A is correct
15)option B is correct
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