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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

Ask the Professor Forum

I am doing problem #45 (ch.8) and in the answer key it says that the test stat is 0.45. However, I am getting the test stat to be -2.236. Not sure what I am doing wrong. Thanks

Posted to STATS 2 on Friday, September 20, 2013   Replies: 1

Professor Mcguckian
7:08 PM EST

Hi Shirley,

Here is a video explaining this problem. I hope it helps, but if you still have a question respond below.


Professor McGuckian

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