TABLE 16-8
the President of a Chain of Department

question 76

Short Answer

TABLE 16-8
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 1980 is coded as 0, 1981 is coded as 1, etc.
SUMMARY OUTPUT

$\begin{array}{lr}\text { Regression Statistics } & \\\text { Multiple R } & 0.604 \\\text { R Square } & 0.365 \\\text { Adjusted R Square } & 0.316 \\\text { Standard Error } & 4.800 \\\text { Observations } & 17\end{array}$

$\begin{array}{lc} & \text { Coefficients } \\\text { Intercept } & 31.2 \\\text { Coded Year } & 0.78\end{array}$

-Referring to Table 16-8, the fitted trend value (in millions of dollars) for 1985 is ____.

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Definitions:

Genetic Inheritance

The process by which genes and traits are passed down from parents to their offspring through chromosomes, determining inherited characteristics.

Population Variance

A measure used in statistics to describe the dispersion or spread of a set of data points in a population, indicating how much the individuals differ from the mean.

Heritability

A measure of how much of the variation in a trait within a population can be attributed to genetic differences among individuals.

Genetically Determined

An attribute or condition that is established by an individual's genetic makeup, influencing their characteristics or predispositions.