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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 3

The time it takes to three brands of caulk to fully dry is studied by a construction contractor. Six beads from each of the three brands are randomly placed in the same space in a bathroom. The time for each bead to dry is listed below. Use a 5% significance level to test the claim there is a difference between the drying times for the different brands of caulk, and form an ANOVA table.
       Brand
A         B      C
24.7 22.1 25.7
28.6 20.2 24.3
25.1 21.1 23.6
25.3 23.5 26.1
26.0 22.8 26.9
25.9 22.7 24.2
 

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