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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 180: Is the color of the motorcycle helmet used by riders somehow related to the risk of crash related injuries? Use the data below to test the claim at the 5% level of significance that the colors of motorcycle helmets are independent of crash injuries.
Black White Yellow/Orange Totals
Not Injured 491 377 31 899
Injured or Killed 213 112 8 333
Totals 704 489 39 1232
STATS1
STATS2
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