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Refer to the Following:
a Consulting Firm Estimates the Following Qt=a+bt+cDQ _ { t } = a + b t + c D

Question 25

Multiple Choice

Refer to the following:
A consulting firm estimates the following quarterly sales forecasting model:
Qt=a+bt+cDQ _ { t } = a + b t + c D
The equation is estimated using quarterly data from 2003I-2013III (t = 1,..., 43) . The variable D is a dummy variable for the second quarter where:
D = 1 in the second quarter, and 0 otherwise.
The results of the estimation are:
 DEPENDENT VARIABLE:  QT  R-SQUARE  F-RATIO  P-VALUE ONF  OBSERVATIONS: 430.8644127.50.0001 VARIABLE  PARAMETER  STANDARD  ESTIMATE  ERROR  T-RATIO  P-VALUE  INTERCEPT 22.59.322.410.0201 T 1.860.553.380.0016 D 2.00.712.820.0075\begin{array}{rllll}\text { DEPENDENT VARIABLE: } & \text { QT } & \text { R-SQUARE } & \text { F-RATIO } & \text { P-VALUE ONF } \\\text { OBSERVATIONS: } & 43 & 0.8644 & 127.5 & 0.0001\\\\\text { VARIABLE } & \text { PARAMETER } & \text { STANDARD } & \\&\text { ESTIMATE } & \text { ERROR } & \text { T-RATIO } & \text { P-VALUE } \\\text { INTERCEPT } & 22.5 & 9.32 & 2.41 & 0.0201 \\\text { T } & 1.86 & 0.55 & 3.38 & 0.0016 \\\text { D } & 2.0 & 0.71 & 2.82 & 0.0075\end{array}
-At the 1 percent level of significance, is there a statistically significant trend in sales?


A) No, since 1.86 < 2.704
B) No, since 0.55 < 1.86
C) No, since 1.02 < 2.704
D) Yes, since 1.86 > 0.55
E) Yes, since 3.38 > 2.704

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