00:01
Okay, for this problem we have some record high temperature data and we're asked to do a sampling method and pick 10 and see how the mean of 10 of the samples compares to the sample mean of the 10 samples compares to the population mean.
00:17
So i have all my temperatures here since i type these onto a spreadsheet and just so you know the population mean is just basically the average of all those numbers together.
00:28
So i'm just kind of, you know, you need to see me add up 50 numbers, but the population mean is 114.
00:35
As far as a sampling technique, i don't see any advantages or disadvantages to the different techniques.
00:43
I'm just going to go for convenience.
00:45
I'm just going to do a cluster sample and see how that works.
00:48
So i'm just going to pick the last 10 states here.
00:53
Actually, let's put these first 10 up here.
00:55
I pick 10 in the other ones here...