00:01
The task is to construct a 99 percentage confidence interval for the mean of the paired differences, given that the value of sample size is equal to 39 and the value of d bar will be here equals to, it is 4 .729 and then we can mention the value of standard deviation, which is here 0 .5.
00:25
Now it will be 5 -5.
00:27
So let us write the value of significance level, which is 0 .01.
00:33
Now firstly, we will mention the value of degrees of rhythm, which is n minus 1.
00:39
So this value will be equals to 38.
00:42
And now the value of t -critical will be here equals to it is approximately 2 .708.
00:50
And we have written this value by using the excel command, which can be here mentioned as equal t -d.
00:58
.inv and then it is .2t.
01:01
Now it will be here alpha which is 0 .01 and here it will be the value of degrees of ridd up.
01:09
So it is 38 and then we can mention the value of standard error...