- Data files for SPSS and for R:
Predicting Album Sales - linear regression models
and scatterplots in R and in SPSS.
Up and Running with R by Barton Poulson.

SPSS Statistics Essential Training from lynda.uni.edu, which you login to with your UNI Cat ID.

- See 7. Charts for Associations: 7.6. Scatterplots
- See 8. Statistics for Associations 8.2. Multiple regression.

What to turn in for the assignment: 1. Using the AlbumSales.csv file and the R stat software through RStudio, you will produce 4 scatterplots. There are 4 independent variables and 1 dependent variable. Investigate visually the relationship of each IV with the DV. You will do the regression in R using the 4 IVs and the 1 DV. If you need to review the R, go to lynda.uni.edu and use the Up and Running with R video tutorial set. 5. Charts for Associations 5.2. Creating scatterplots 4m 15s 6. Statistics for Associations 6.2. Computing a regression 6m 33s 2. Using the AlbumSales.sav SPSS data set and SPSS software, produce the 4 different scatterplots (Each IV with the DV). At the FIT line for the LINEAR best fitting regression line to each of your scatterplot charts. Run the SPSS Regression with the 4 IVs and the 1 DV. You do NOT need to do anything except choose the 4 IVs and the 1 DV. You will just use the DEFAULTS in the Regression dialogue. It is set to ENTER. That is the default. I mentioned STEPWISE and BACKWARD and FORWARD methods in class just to see who has heard of those and to preview what we will get to 8 or so weeks from now, probably sometime in NOVEMBER!

Chapter 12: Graphics - The plot() function: The Art of R Programming: A Tour of Statistical Software Design ... UNI library online book.