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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 127: The Windsor bottling company received complaints that their 12oz root beer bottles contained less than 12 ounces in them. When 24 bottles are randomly selected and measured the amounts had a mean of 11.4 ounces and a standard deviation of 0.62 ounces. Test the claim that consumers are being cheated. If the company says the sample is too small for the results to be being meaningful, is that reasoning valid here?