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ASK THE PROFESSOR FORUM

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

Hello professor,
I am not getting question number 29 of mixed review of chapter 13?

Posted to STATS 2 on Tuesday, December 2, 2014   Replies: 2


Professor Mcguckian
12/02/2014
9:24 PM EST

Hi Annum,

This question is asking you to check the expected values to ensure that they are all at least five. In chapter 13, you learned that for the Chi-square procedures the expected values must be greater than or equal to five. For a two-way contingency table, the expected value is found by performing (row total)*(column total)/ grand total for every cell in the table.

If you do this, you will see that indeed every cell has an expected value that is at least 5.

Professor McGuckian


Professor Mcguckian
12/02/2014
9:26 PM EST

Hi Annum,

You only need to post your question once. After I read, approve the question, and respond, your question and its answer will appear on the site.

Professor McGuckian

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