00:01
In this question, we are asked to identify the null and alternate hypotheses in a significance test between two population proportions.
00:09
Specifically, the two proportions that we are considering are the teens and the young adults, the proportions of which own an ipod.
00:17
So they went and collected random samples of 800 teens and also 400 young adults.
00:23
So those would be information about our sample, but we do not use actually any sample information when we, create our null and alternate hypotheses.
00:33
So my null hypothesis is where i'm going to start, and that would be h -0.
00:37
That's what we're going to assume to be true and less proven otherwise.
00:42
So null hypothesis, i want to show if there is a difference.
00:47
So my null hypothesis would be that there is no difference between the proportions whatsoever.
00:52
But i need to introduce some notation in order to symbolize that null hypothesis.
00:57
There are, like i said, there are two proportions.
00:59
There's teens, two populations, teens and young adults...