TABLE 13-5
the Managing Partner of an Advertising Agency Believes

question 174

Multiple Choice

TABLE 13-5
The managing partner of an advertising agency believes that his company's sales are related to the industry sales. He uses Microsoft Excel's Data Analysis tool to analyze the last 4 years of quarterly data with the following results:
$$\begin{array}{l}\text { Regression Statistics }\\\begin{array} { l c } \hline \text { Multiple R } & 0.802 \\\text { R Square } & 0.643 \\\text { Adjusted R Square } & 0.618 \\\text { Standard Error } S Y X & 0.9224 \\\text { Observations } & 16 \\\hline\end{array}\end{array}$$ $$\begin{array}{l}\text { ANOVA }\\\begin{array} { l r l r l r } \hline & d f & \text { SS } & \text { MS } & F & \text { Sig. } F \\\hline \text { Regression } & 1 & 21.497 & 21.497 & 25.27 & 0.000 \\\text { Error } & 14 & 11.912 & 0.851 & & \\\text { Total } & 15 & 33.409 & & &\end{array}\end{array}$$ $$\begin{array}{l}\text { Predictor }&\text { Coefficients}&\text { Standard Error }& t \text { Stat } &p \text {-value }\\\text { Intercept } & 3.962 & 1.440 & 2.75 & 0.016\\\text { Industry } & 0.040451 & 0.008048 & 5.03 & 0.000\end{array}$$ Durbin- Watson Statistic 1.59
-Referring to Table 13-5, the partner wants to test for autocorrelation using the Durbin-Watson statistic. Using a level of significance of 0.05, the decision he should make is

• A) there is no evidence of autocorrelation.
• B) there is not enough information to perform the test.
• C) there is evidence of autocorrelation.
• D) the test is unable to make a definite conclusion.

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