Description
- Consider the data set website names Hw1_2020.xls or .csv. Answer the questions based on this data set:
- Plot the scatter plot and mention any possible violation of assumptions you see in this plot.
- Plot the residual versus predicted plot and the normal probability plots. What do you see?
- Do the correlation test for normality. For n>100, for alpha=.05, the critical value is: .987.
- Do the Brown Forsyth Test or the Breusch Pagan test (whichever you think is appropriate). Discuss results.
- Look at the Box-Cox transform to see what transformation if any is appropriate for the Y’s.
- What is the value of the Durbin Watson statistic?
- Give an example from your experience where you have faced multiple regression.