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TABLE 16-12 A Local Store Developed a Multiplicative Time-Series Model to Forecast

question 22

Multiple Choice

TABLE 16-12
A local store developed a multiplicative time-series model to forecast its revenues in future quarters, using quarterly data on its revenues during the 4-year period from 2005 to 2009. The following is the resulting regression equation:
log₁₀ = 6.102 + 0.012 X - 0.129 Q₁ - 0.054 Q₂ + 0.098 Q₃
where is the estimated number of contracts in a quarter.
X is the coded quarterly value with X = 0 in the first quarter of 2005.
Q₁ is a dummy variable equal to 1 in the first quarter of a year and 0 otherwise.
Q₂ is a dummy variable equal to 1 in the second quarter of a year and 0 otherwise.
Q₃ is a dummy variable equal to 1 in the third quarter of a year and 0 otherwise.
-Referring to Table 16-12, the best interpretation of the coefficient of Q₃ (0.098) in the regression equation is

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Definitions:

Inhibit Translation

The process of hindering the synthesis of proteins by preventing the translation of messenger RNA (mRNA) on ribosomes.

Mobile DNA Element

Segments of DNA that can move or copy themselves to new positions within the genome, playing roles in genetic diversity and evolution.

Germ Cells

Specialized cells involved in reproduction, giving rise to gametes, such as sperm or eggs.

Double-Stranded RNA

Double-stranded RNA is a molecular structure that consists of two complementary strands of RNA molecules, often playing a role in gene regulation and antiviral defense mechanisms.