AP Statistics Chapter 25 Paired Samples and Blocks



Chapter 25 – Reading Guide

“Paired Samples and Blocks”

1. What is paired data? Give an example.

Note: A one sample T-test for differences in paired data = a paired T-test.

Note: Differences must be independent.

Note: Control groups must be used if any doubt of randomness in sampling is unknown or questionable.

Note: The differences have to follow the normal model, not necessarily the two groups that the differences came from.

Be able to do the Step by Step for Paired T Test on pages 591-593.

Be able to do the Ti-Tips on page 594.

2. What is the formula for a paired T-interval?

Be able to do the Step by Step for a Paired T-Interval on pages 595-596.

Be able to do the Ti-Tips on page 597.

Do the “Just Checking” on pages 598-599.

3. Summarize What Can Go Wrong.

Be able to identify the parts of the computer printouts on pages 601-602 for the test.

Chapter 25 Assignment: pages 602-608 #2, 4, 7, 8, 17, 18, 19, 20, 25.

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