
Algebra PreAlgebra and Basic Algebra Math Forum 
 LinkBack  Thread Tools  Display Modes 
May 3rd, 2010, 09:21 PM  #1 
Newbie 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 CliffTalus 81 70 62 213 Canyon Beach 92 68 66 226 Column Total 248 199 181 628 Use the chisquare test to determine if site type and pottery type are independent at the 0.01 level of significance. Thank you, Larry 
May 4th, 2010, 06:15 AM  #2 
Global Moderator Joined: Dec 2006 Posts: 19,059 Thanks: 1619 
Can you post your work, so that your mistake(s) can be identified? To revise what you need to do, read this description.

October 26th, 2017, 12:41 PM  #3 
Newbie 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 chisquare 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. 
October 26th, 2017, 03:45 PM  #4 
Newbie 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."


Tags 
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 
Chisquare goodnessoffit test  JakeD  Advanced Statistics  1  August 13th, 2007 08:08 AM 
Find critical value, Ftest value and Test Null Hyp.  symmetry  Advanced Statistics  0  April 7th, 2007 03:05 AM 