A) X 1 , X 2 , X 3 B) X 1 , X 3 C)eitherof the above D)noneof the above 39. TABL

Question

A)X1,X2,X3
B)X1,X3
C)eitherof the above
D)noneof the above

39. TABLE 16-5

A contractor developed a multiplicative time-series modeltoforecast the number of contracts in future quarters,usingquarterly data on number of contracts during the 3-year periodfrom1996 to 1998. The following is the resultingregressionequation:

ln = 3.37 + 0.117 X - 0.083 Q1 +1.28Q2 + 0.617 Q3

where is the estimated number of contracts in a quarter
X is the coded quarterly value with X = 0 in thefirstquarter of 1996.
Q1 is a dummy variable equal to 1 in thefirstquarter of a year and 0 otherwise.
Q2 is a dummy variable equal to 1 in thesecondquarter of a year and 0 otherwise.
Q3 is a dummy variable equal to 1 in thethirdquarter of a year and 0 otherwise.


Referring to Table 16-5, using the regression equation, which ofthefollowing values is the best forecast for the number ofcontracts inthe third quarter of 1999?

A)252
B)277
C)228
D)311

Explanation / Answer

38.A) X1, X2,X3 39.B) 277

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