Stats 512: Conceptual Exercise 4:
You can do the following by yourself or choose to work with other classmates in a group of maximum
3.
We are interested in a practical demonstration of 2 factor ANOVA (3 indices). This can include CRD with
2 factors and reps, Split Plot, Split Block or Strip Plot. Collect some data that fits the description and
analyze it. Several of you might be analyzing complicated data for other classes, but here we are strictly
sticking with 2 factors (hopefully balanced). Look at interaction and then do the necessary analysis.
Write this up as a short technical paper (maximum 4 pages in length). A technical paper has a TITLE,
Author(s), an abstract and key-words. Make sure you include them. Do not put computer output
directly in the write-up. Please type your report and use at least size eleven font and one and half or
double spacing.
In your write up explain your data collection process. I would REALLY prefer a SIMPLE experiment that
you conduct and analyze to a very complicated design. Discuss if it is experimental or observational
data. How randomization was done. The design used to collect it. Formulate your hypothesis.
Summarize your data using some kind of graphs (box plots, individual plots etc). Then provide the
ANOVA table and your conclusion based on the table. Do follow-up analysis when required, Tukey,
Fisher’s LSD, or Dunnett. Test the assumptions of your model and comment on it. Write up your
conclusion and discussion.
You can use software but no direct output can be used in your write up. You can cut and paste graphs
and results into your write-up, ONLY in the Appendix.
You will be given some lab time on Nov 7 to do your analysis if you need the time. Your report is due
Dec 5.