00:01
Hello, so there is an experiment setup, so let's go over it.
00:04
The experimental design, we have an independent variable, which is our dosage of medication, and that is 0 milligrams per day, 50 milligrams per day, and 100 milligrams per day.
00:26
And then we have our dependent variable here, and that is going to be change in cholesterol levels of the subject.
00:49
Now we have our hypothesis, we have our null hypothesis.
00:53
We'll denote that as h of 0.
00:55
There's no difference in the mean cholesterol levels across the three dosage groups.
01:00
So we'll just label this as no difference in cholesterol.
01:12
And then for our alternative hypothesis, we'll label this h of a.
01:19
There is a difference.
01:25
Now, the statistical test, given that we have three groups, you would likely use the anova or analysis of variance to test for differences in mean cholesterol levels amongst the groups...