Just made a new guide as a follow-up to my prior guide! It is on the chi-square test of independence, also known as the two-variable chi-square test. Because the “Data Analysis” add-on in Excel does not have this function, it is a pain to calculate in Excel. So, I hope this guide can make it a little bit easier to others.
Here is a link to it: https://mattchoward.com/chi-square-test-of-independence-in-excel-two-variable/
Please email me at MHoward@SouthAlabama.edu if you have any questions!