Question: Using similar code as that which appeared in the regression interactions section of this chapter, plot regression lines showing PREP (on the Xaxis) and RTEN

Using similar code as that which appeared in the regression interactions section of this chapter, plot regression lines showing PREP (on the Xaxis) and RTEN (on the Yaxis). Plot two regression lines, one for the half of the data set where FAMI is below its median value and one where FAMI is at or above its median value. Without knowing any of the statistics, do you think it likely that there is an interaction between FAMI and PREP? Explain why or why not in your own words.

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