A Forecaster Used the Regression Equation $Q _ { t } = a + b t + c _ { 1 } D _ { 1 } + c _ { 2 } D _ { 2 } + c _ { 3 } D _ { 3 }$

question 54

Multiple Choice

A forecaster used the regression equation $Q _ { t } = a + b t + c _ { 1 } D _ { 1 } + c _ { 2 } D _ { 2 } + c _ { 3 } D _ { 3 }$ and quarterly sales data for 2004I-2021IV (t = 1,...,64) for an appliance manufacturer to obtain the results shown below.Q is quarterly sales,and $D _ { 1 } , D _ { 2 }$ and $D _ { 3 }$ are dummy variables for quarters I,II,and III. Using the estimation results given above,the predicted level of sales in 2022I is _______ units.

• A)137.5
• B)139
• C)133.5
• D)132
• E)none of the above

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Definitions:

Economic Growth

An increase in the amount of goods and services produced per head of the population over a period of time.

Fed Attention

The focus or monitoring by the Federal Reserve, the U.S. central bank, on various economic indicators and conditions to make monetary policy decisions.

Rational Expectations

A theory in economics that suggests individuals make predictions about the future based on all available information, incorporating their understanding of economic policies and trends.

Monetary Policy

Actions of a central bank, currency board, or other regulatory committees that determine the size and rate of growth of the money supply, which in turn affects interest rates.