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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
9.9 Inference Procedures to Compare Two Population Proportions: Independent Sampling
Lost baggage: The U.S. carriers reporting mishandled baggage data posted a mishandled baggage rate for the first quarter of 2010, the carriers posted a mishandled baggage rate of 4.10 per 1000 bags handled, down from the 4.39 rate per 1000 bags for first quarter of 2009. Use a 5% significance level to test if the drop is a significant reduction.
STATS1
STATS2
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