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Course Documents
Chapter 1  Intro
Chapter 2  Methods for Describing Sets of Data
Chapter 3  Probability
Chapter 4  Discrete Random Variables
Chapter 5  Normal Random Variables
Chapter 6  Sampling Distributions
Chapter 7  Confidence Intervals
Chapter 8  Tests of Hypothesis: One Sample
Chapter 9  Confidence Intervals and Hypothesis Tests: Two Samples
Sample Exam I: Chapters 1 & 2
Sample Exam II: Chapters 3 & 4
Sample Exam III: Chapters 5 & 6
Sample Exam IV: Chapters 7 & 8
Lecture Examples
Example 159.2 (Tech): Nutrition researchers are interested in the effects of two antioxidant supplements (A and B) on the longevity of rats. The response variable, lifespan, is measured in years. A group of 36 rats were divided evenly and randomly into nine groups. The supplements A and B were provided at three different dose levels (high, low, and none). Use the various SPSS outputs below to answer the questions that follow:

No A 
Low A 
High A 
No B 
1.9, 2.1, 2.0, 1.9 
2.0, 2.1, 2.3, 2.4 
2.6, 2.5, 2.6, 2.6 
Low B 
2.2, 2.2, 2.4, 2.6 
2.9, 3.0, 3.0, 3.1 
2.9, 3.0, 3.1, 3.1 
High B 
2.9, 2.8, 2.6, 2.7 
3.1, 3.2, 3.0, 3.1 
3.4, 3.3, 3.5, 3.3 