Brewsky's Is a Chain of Micro-Breweries What Is the Percent of the Total Variance That Can

question 108

Multiple Choice

Brewsky's is a chain of micro-breweries.Managers are interested in the costs of the stores and believe that the costs can be explained in large part by the number of customers patron­izing the stores.Monthly data regarding customer visits and costs for the preceding year for one of the stores have been entered into the regression analysis and the analysis is as follows:
$$\begin{array} { | l | r | } \hline \text { Average monthly c ustomer-visits } & 1,462 \\\hline \text { Average monthly total costs } & \$ 4,629 \\\hline \text {Regression Results } & \\\hline \text { Intercept } & \$ 1,496 \\\hline \text { bcoefficient } & \$ 2.08 \\\hline R ^ { 2 } & 0.86814 \\\hline\end{array}$$

What is the percent of the total variance that can be explained by the regression equation? (CMA adapted)

• A) 86.8%
• B) 31.6%
• C) 97.7%
• D) 71.9%

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Definitions:

Bad Events

Unfavorable or negative occurrences that can impact an individual's mental or emotional well-being.

Optimistic Explanatory Style

A cognitive approach where individuals attribute positive events to their own qualities and negative events to external factors, contributing to resilience and well-being.

Negative Events

Undesirable or harmful occurrences that can cause stress, sadness, or trauma, negatively impacting an individual's mental and emotional well-being.

Temporary

Lasting for only a limited period; not permanent.