I go through the steps involved with performing a 2 by 2 contingency table analysis (also known as a Pearson chi-square analysis). In the video, I make reference to an interactive on-line spreadsheet that can do all of the calculations, as well as write-up the results. Here's the link:
http://how2stats.blogspot.com/2011/09/2-by-2-table-web-calculator.html
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