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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

Example 169

Example 169: Calculate the correlation coefficient for the following data set which gives the waist measurement and body fat percentage for males who weigh 165 pounds.  Do these quantities have a linear relationship?  If so, is it positive or negative?

 Male Waist

(in inches)

Body fat %

30

32

34

36

38

8.5

12.0

18.5

25.0

27.0

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