Play it again, Sam!
What if 90% of the sickdays were on M/F?
Ok, so now take that calculated chi square value and compare it to the critical chi square on the table.
You should have gotten a chi-square-calc of 104.166, compared to the chi-square-crit of 3.84. So, the chi-square-calc is much greater than the chi-square-crit -- so the data does not fit the model and you reject your null hypothesis. In other words, Dilbert's random sickday model does NOT hold up.
Copyright University of Maryland, 2007
You may link to this site for educational purposes.
Please do not copy without permission
requests/questions/feedback email: email@example.com