STA305s14 Computer Assignment Eight
For the Regular final exam

You will not bring any printouts to the final exam. You will answer questions based on my SAS program and list file. So this is just an opportunity to familiarize yourself with the data and conclusions, so you can process the information faster on the exam. The only SAS questions on the final regular exam will be on these data.

Mantids are insects, kind of like crickets or grasshoppers. When frightened, they emit loud noises that function as alarm calls. I believe they make the sounds by rubbing their hind legs together. The frequency (number of calls per minute) may indicate how alarmed the mantids are. In this study, caged mantids (either Female or Male) were randomly assigned to be exposed to one of four predators (birds), and the number of alarm calls per minute was recorded.

The data are available in the file littlemantids.data. You can probably predict what I am going to do with these data. Here are some comments.

• I might do the same thing in more than one way.
• I might use a combination variable, so you should too. Review the SAS lecture material as necessary.
• There will be multiple comparisons, either Bonferroni, Scheffe or both. If I compute critical values, it will be just for the initial test, so bring a calculator.