Instruction 14-9
the President of a Chain of Department Stores

question 78

Short Answer

Instruction 14-9
The president of a chain of department stores believes that her stores' total sales have been showing a linear trend since 1980. She uses Microsoft Excel to obtain the partial output below. The dependent variable is sales (in millions of dollars), while the independent variable is coded years, where 1990 is coded as 0, 1991 is coded as 1, etc.
$$\begin{array}{l}\text { SUMMAROUIPUT }\\\begin{array} { l l } \text { Regression Statistics } & \\\text { MultipleR } & 0.604 \\\text { R Square } & 0.365 \\\text { Adjusted R Square } & 0.316 \\\text { standard Error } & 4.800 \\\text { Observations } & 17 \\& \\& \text { Coefílients } \\\text { Intercept } & 31.2 \\\text { Coded Year } & 0.78\end{array}\end{array}$$
-Referring to Instruction 14-9,the forecast for sales (in millions of dollars)in 2015 is _______

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Axon

A long, slender projection of a nerve cell that typically conducts electrical impulses away from the neuron's cell body.

Soma

The body of a neuron, containing the nucleus and metabolic machinery necessary for maintaining cell functions.

Acetylcholine

A neurotransmitter in the nervous system involved in muscle activation, memory formation, and the modulation of other neural activities.

Monoamines

A group of neurotransmitters, including dopamine, serotonine, and norepinephrine, that play key roles in regulating mood, arousal, and cognition.