Caldwell, Sally (2010). Statistics Unplugged (3rd ed.) Thomson Wadsworth: Belmont, California. ISBN 0-495-60218-3. (Available locally, on the internet, or buy, rent, or buy eBook at http://www.cengagebrain.com/shop/isbn/0495602183?cid=rdl)
07 Hypothesis Testing with a Single Mean
08 Hypothesis Testing - Two Means