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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, can you explain how to find the answers for question 2 in the homework 13.1?

Posted to STATS 2 on Monday, November 17, 2014   Replies: 2


Professor Mcguckian
11/17/2014
12:52 PM EST

Hi Sheyla,

You are using the Chi-Square table, just like in problem 1. The k gives us the number of categories, so to get the degrees of freedom, you just subtract one. The degrees of freedom are always k - 1 in the one-dimensional Chi-Square test. The question also provides the significance level, so we simply go to the table to look up the significance level with the corresponding degrees of freedom.

Professor McGuckian


.
11/17/2014
12:53 PM EST
Thank You

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