00:01
You have a sample one and a sample two.
00:04
And so i'm going to assume that this sample one and sample two, that you have a mean and you have a sample standard deviation and a sample size.
00:14
And likewise, you have a sample mean, a sample standard deviation, and then a sample size.
00:20
And you want to find a 95 % confidence interval for the difference between those two population means.
00:28
And i can't see your data.
00:32
So i'll just give you the formula that you can use.
00:34
And first of all, you can enter this into a calculator as a two sample t interval.
00:44
So you can enter that data in and you can tell it whether you're pooling.
00:48
I'm going to assume that the standard deviation of the first is not assumed to be equal to eight the second.
00:56
So i am not pooling.
01:00
Now you take the difference between your two sample means and it's plus or minus and then there will be a t value and you will want to have with 95 % confidence...