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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 190

Example 190 Test the claim at the 5% significance level that all four of the treatments produce the same median weight for poplar trees grown from seedlings. 
 

Effects of treatments on Poplar tree weights
Treatments
None    Fertilizer    Irrigation    Both
  0.15         1.34           0.23    2.03
  0.02         0.14           0.04    0.27
  0.16         0.02           0.34    0.92
  0.37         0.08           0.16    1.07
  0.22         0.08           0.05    2.38
 

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