DSC 410/510 - Multivariate Statistical Methods

Assignment 1 (deadline: 4pm on Monday, October 4)

Practical matters

• Make sure your LCB network account in the Business Technology Center is active.
• Download the "hatco.xls" Excel spreadsheet on the data page and work through slides 4-7 of "Examining Your Data" (available on the handouts page) using these data.
• Send an e-mail to ipardoe at lcbmail.uoregon.edu with a Microsoft Word attachment with answers to the following questions:
  1. Before looking at the data, what sort of relationship might you expect there to be between the variables x4 and x6? (Hint: read the textbook to find out what the variables measure.)
  2. Use SAS Analyst to construct a scatterplot with x4 on the vertical axis (y) and x6 on the horizontal axis (x). Use the following guidelines:
     • In SAS, select Graphs > Scatter Plot > Two-Dimensional to construct the plot
     • In SAS, select Edit > Copy Graph to copy the plot
     • In Word, select Edit > Paste to paste the plot
  3. Interpret the results of a simple linear regression analysis with x4 as the response or dependent variable (y) and x6 as the predictor or explanatory variable (x). Use the following guidelines:
     • In SAS, select Statistics > Regression > Simple to run the analysis
     • In SAS, select Edit > Copy to Program Editor and then Edit > Select All and then Edit > Copy to copy the output
     • In Word, select Edit > Paste to paste the output (you may need to increase the margins so the output fits on the page)

Reading

Chapters 1 and 2 in the text-book, pages 1-86.

Review questions

Usually, I will suggest questions you can do to review material; these will usually be questions from the text-book. We may discuss some of the questions in class on Tuesday, October 5, and I will also provide suggested solutions to allow you to check your answers.

• Page 31: questions 5, 6, and 7
• Page 85: questions 1, 4, 5, and 6