Author: Anonymous

In the Excel scatterplot shortcut described in Module 8, which two display options should be selected when adding a linear trendline to a scatterplot?

If a regression model has an R-square = 0.670, what percent of variation in the model is not explained? (answer as percent with 1 decimal, e.g., 46.5%, and include % sign)

A simple regression output shows R-square = 0.670. Based on Module 8, which interpretation is most appropriate?

In Excel regression output, the value that gives the overall model’s statistical significance is Significance __________.

In simple linear regression, what is the dependent variable?

A retail analyst finds a strong positive correlation between store lighting quality (x) and customer purchases (y). According to Module 8, what conclusion is justified from correlation alone?

In a scatterplot, when points generally fall from upper-left to lower-right. Which type of relationship is most likely shown?

A researcher claims that because trust (x) and loyalty (y) are correlated, trust must be the sole cause of loyalty. Which Module 8 warning does this violate?

Which correlation represents the weakest linear relationship?

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