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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
9.11 Hypothesis Test to Compare Two Population Variances: Independent Sampling
Is there a difference between the variances of the number of weeks on the best seller lists for nonfiction and fiction books? Fifteen New York Times bestselling fiction books had a standard deviation of 6.17 weeks on the list. Sixteen New York Times bestselling nonfiction books had a standard deviation of 13.12 weeks. At the 10% significance level, can we conclude there is a difference in the variances?
STATS1
STATS2
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