00:01
Okay, so i see that you need help with this question.
00:02
And it says, which of the following conditions must be met to construct a confidence interval or significance test for population mean? and there's three conditions that must be met.
00:14
So three conditions.
00:17
And they are random.
00:22
They need to be random.
00:25
They need to be independent.
00:27
And they need to be normal.
00:34
Okay? so this one has normal.
00:37
And this one has random.
00:41
Okay? other things, okay, that's the short.
00:46
Okay? these three conditions are the short.
00:48
All right? the long, the following conditions must be had in order to construct a confidence interval or a significance test.
00:56
So the first thing is you must verify that the sample was selected randomly, so random sampling.
01:07
And that individual observations are independent.
01:11
Independent individual observations are independent, too...