In this video, I walk you through the basics of how to perform a chi-square test of association and describe the results in a 2 X 4 contingency table.
Download a copy of the data here:
https://drive.google.com/file/d/13_8RTDUazyDzN-wT5zEzMfNj4oXT82rK/view
Powerpoint presentation: https://drive.google.com/file/d/1-y0vspuPBexGlCQLgFJo70lCxaV2A7I6/view
See https://youtu.be/0iMjmCcRKHc for a short video on how to analyze frequency data.