Categorical Predictors II

Enter summary(lm(liking ~ smile + money + talk)) into your console to see the output from your regression analysis that includes how much giving people money, smiling and saying neutral, rude or polite statments predicts how much people like you.

You included the neutral/rude/polite statments in your model as the values 1, 2, and 3. Behind the scenes, R compares the regression slope for rude statements, to the regression slope for neutral statements (talk2), and compared the regression slope for polite statements to the regression slope for neutral statements (talk3). The output shows coefficient estimates talk2 and talk3.

Let's assume that all of the assumptions for performing a regression analysis were met. Which of the following statements is true?

Possible answers

A rude statement was negatively related to how much someone liked us, while a polite statement was positively related to how much someone liked us.

A polite statement was negatively related to how much someone liked us, while a neutral statement was positively related to how much someone liked us.

A neutral statement was negatively related to how much someone liked us, while a positively statement was positively related to how much someone liked us.

Exercise

Categorical Predictors II

Instructions

Possible answers