Multiple regression: strongest predictor variable

Which is the strongest predictor variable for the salary of the professors in the dataset when performing the same multiple regression as in the previous exercise: the number of publications or the years as a faculty member? And how can you tell?

Use the R console and the pre-loaded dataset fs to arrive at the correct answer. If you are stuck or simply skipped the introductory module to correlation and regression, look at the hint to gain some extra tips and tricks.

Possible Answers

The number of years as a faculty member. This because the unstandardized coefficient for years is the highest.
The number of years as a faculty member. This is because the standardized coefficient for publications is the highest.
The number of publications. This is because the standardized coefficient for publications is the highest.
The number of publications. This because the unstandardized coefficient for years is the highest.

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Exercise

Multiple regression: strongest predictor variable

Instructions

Possible Answers