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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 2

11.2 Finding S for the Random Error Terms

The following set of data is randomly selected from a STA 2122 class of mine from spring 2010. The list includes clicker points earned in class and their final averages. Use the data below to find the S2 for the random error of the least squares prediction line:
Clicker points   32  11  34   41 16 15   7 15
Class Average 99  70  91 101 79 72 68 68
 

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