My Math Forum  

Go Back   My Math Forum > High School Math Forum > Algebra

Algebra Pre-Algebra and Basic Algebra Math Forum

LinkBack Thread Tools Display Modes
May 3rd, 2010, 09:21 PM   #1
Joined: Aug 2009

Posts: 3
Thanks: 0

Help with Chi Square Test

Could you please solve this for me showing all steps. I just can't seem to get the right answer:

The Following table shows site type and type of pottery for a random sample of 628 sherds of at a location in Sand Canyon Archaeological Project, Colorado:

Pottery Type
Mesa Verde McElmo Mancos Row
Site type B on W B on W B on W Total

Mesa Top 75 61 53 189
Cliff-Talus 81 70 62 213
Canyon Beach 92 68 66 226
Column Total 248 199 181 628

Use the chi-square test to determine if site type and pottery type are independent at the 0.01 level of significance.

Thank you,

larryjj is offline  
May 4th, 2010, 06:15 AM   #2
Global Moderator
Joined: Dec 2006

Posts: 20,939
Thanks: 2210

Can you post your work, so that your mistake(s) can be identified? To revise what you need to do, read this description.
skipjack is offline  
October 26th, 2017, 12:41 PM   #3
Joined: Oct 2017
From: US

Posts: 13
Thanks: 1

There is an easy way to do this problem, just copy/paste the summary table (removing the headers, removing row sum, column sum and total like below)

75 61 53
81 70 62
92 68 66

into this free online chi-square test calculator, and you will get a p value of 0.967907596203. As the p value is way bigger than 0.01, we can reject independence at 0.01 level.

Last edited by James White; October 26th, 2017 at 12:47 PM.
James White is offline  
October 26th, 2017, 03:45 PM   #4
Joined: Oct 2017
From: US

Posts: 13
Thanks: 1

Sorry I meant to say "As the p value is way bigger than 0.01, we can NOT reject independence at 0.01 level."
James White is offline  

  My Math Forum > High School Math Forum > Algebra

chi, square, test

Thread Tools
Display Modes

Similar Threads
Thread Thread Starter Forum Replies Last Post
Chi Square Test Miles123 Algebra 0 December 31st, 2010 09:54 AM
Test Statistic for Paired Sample Test semifold Advanced Statistics 0 January 23rd, 2010 02:17 PM
Error in my Chi Square Test mathhelp21 Algebra 1 January 2nd, 2009 09:03 PM
Chi-square goodness-of-fit test JakeD Advanced Statistics 1 August 13th, 2007 08:08 AM
Find critical value, F-test value and Test Null Hyp. symmetry Advanced Statistics 0 April 7th, 2007 03:05 AM

Copyright © 2019 My Math Forum. All rights reserved.