Homework Assignments

You are encouraged to use software such as SPSS, R, Excel, etc. The raw data for virtually all of the homework problems are both on the CD in the back of your book, and on Howell's website: (http://www.uvm.edu/~dhowell/StatPages/StatHomePage.html).

On the CD, you will find them in several formats, including tab-delimited text, Excel, and SPSS.

General Notes on the homework assignments:
- The response to each item should be in the form of a short results section or essay, as appropriate.
- The specific questions and requested graphs are items to be encorporated into your answers, not items to be addressed separately.
- Grades for each week's homework will be on a 10 point scale, with 5 points alloted to presentation and clarity, and 5 points to completness and content.
- Brevity and clarity make for good scientific writing.
- Embedding your figures in your answers (as opposed to having them all at the end) is strongly encouraged.

Here is an example homework. The only formatting improvement I might suggest for this would be embedding the figures in the text, rather than placing them at the end.

Assignments will be updated as we go...

I. (Ch. 1):  21 but, before addressing (a) through (e) from the book, use these data and do 1) either stem-and-leaf plots or histograms of the two variables, 2) do a scatterplot of disease rate (hdrate - in incedence per 1000) vs. cigarette consumption (smk - in cigerettes per day), and 3) (as always) write a brief summary of the results.

II. (Ch. 2):  1, 2, 4, 6, 7, 41, 42, 43, 44, 45, 50, 51 - note: taken as a whole, this set of questions just boils down to "analyse and summarize the data given in 2.1 and 2.4."
The data are on the CD in the back of your textbook and on Howell's website .