00:01
For this question, let me take notes first of all what's given here.
00:04
So the t is given as t10, so in this case the 10 denotes, so given in the question, which is the degree of freedom.
00:12
So the degree of freedom for this case, which is 10.
00:16
And we have to calculate these probabilities.
00:18
So the first one, which is the probability of t, this is greater than 3 .169.
00:24
So what that means, that means, so this is where the t value here is, this is 3 .169, so we need to just calculate this area.
00:37
In order to get this one here, we can use the graphing display calculator application, tcdf.
00:42
So the lower boundary, 3 .169, there is no upper boundary i'm going to put for a big number.
00:48
And the degree of freedom here, which is 10 per second variance, and the tcdf.
00:54
So in this case i'm going to just erase this one, so the lower boundary, 3 .169, upper boundary is 1, this is 2 .99, that means 10 to the power 99, and the degree of freedom.
01:06
So the probability would be, which is 0 .005.
01:12
And the b here, so in this case the t value is less than, which is negative 2 .22 and 8, sorry, 1 .372, sorry my bad, 1 .372.
01:25
So again i'm going to use the tcdf, and there is no lower boundary, the upper boundary is 1 .372, and the degree of freedom...