00:01
Hi, i'm david and i'm here to have you answered your question.
00:03
Now let me bring up your question here.
00:06
In the question here, we are going to discuss about the competence interval for the mean.
00:12
And let me remind you that when we talk about the competence interval, let's say the density on the sample distribution in like a bell curve.
00:25
And suppose that we will interest in the several levels.
00:28
The first level will be from the ninth level.
00:32
So it will be some interval from a and p.
00:37
And it's just down the area in the middle here will be the 90%.
00:45
And then it wants to extend into the further 95.
00:49
So there will be something like c and d here.
00:52
So it's not the area in the middle, it will be bigger than that.
00:57
And the area in the middle here it will be equal to the 95%.
01:03
And it will want to extend further to the 98.
01:06
So it could be something like e and f and the area of the outermost here it will be the 98%...