Biological Data Analysis: Homework 5

Due Tuesday, Oct. 1

You must type this and all other homework assignments. Do not e-mail the assignment to me; turn it in early (at 322 Wolf) for a foreseeable absence, or turn it in late after an unexpected absence from class.

1. Look at the data you collected for homework 4 and pick out the two groups whose means are closest to each other. Do a t-test on the two groups you picked, using the Excel function described on the t-test page. Report the P-value and say what it means.

2. Do a t-test on the two groups you picked in question 1, using SAS. Show your SAS program, your log file, and your output.

3. Study for the exam, then try to answer the study questions without looking at your notes. You don't need to turn in anything for this question.

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