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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: 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.

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."


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