Refer to the following:
A consulting firm estimates the following quarterly sales forecasting model:
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:
-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
Correct Answer:
Verified
Q3: representative sample
A)eliminates the problem of response bias.
B)reflects
Q21: Refer to the following:
The following linear
Q22: Seasonal or cyclical variation in a time
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Q24: Refer to the following:
The following linear
Q25: Dummy variables are used in time-series forecasting
Q26: Refer to the following:
The following linear
Q28: Refer to the following:
The following linear
Q28: Refer to the following:
The following linear
Q29: Refer to the following:
The following linear
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