00:01
For this problem, we're going to be doing a chi -square test, and we would assume that there is no relationship between the academic performance and the hours spent studying on the internet.
00:21
I guess that's not studying, is it? on the internet.
00:28
And alternately, that there is a relationship between academic performance and hours spent on the internet.
00:47
So we know what they're trying to infer, that the more time you spend on the internet, then maybe that's going to cause your studies to drop down.
00:54
So, we need to enter this data into our calculator or into some software, and this will be a 4x4 matrix.
01:02
So i'm using a ti -84, and so i'm entering it in as a 4x4 matrix.
01:08
I'm going to pause and enter that data in.
01:12
So i have entered that data into my calculator again as a 4x4 matrix, and i'm going to perform a chi -squared test...