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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

Problem 4

The number of pounds lost by 16 different athletes who were each randomly assigned to one of four weight loss treatments (three different weight loss supplements and a placebo). Use the data below and a 2.5% significance level to test for differences between the four treatments. Do these supplements seem to work? Form an ANOVA table as part of the test.
               Treatment
Placebo  SupA  SupB  SupC
      1            3        10         8
      4            6        11         3
      2            7        14         2
      3            4          8         5
 

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