00:01
So for this problem, i'll note that when we're dealing with a confidence interval, it's typically given by a point estimate, oftentimes the sample mean, plus or minus a margin of error, where the margin of error is a t score for n minus 1 degrees of freedom and a particular level of significance, which i won't get into, since it's not specifically relevant here, times our sample standard deviation divided by the square root of the sample size.
00:26
Now we have that, actually, one second here, i'll bring up a number, actual t score here.
00:32
All right.
00:33
So we can see that for any given level of significance here, we have that as the number of degrees of freedom decreases the t score increase, or yeah, as the number of degrees of freedom in or decreases, the t score increases.
00:54
So if we were going from 41 to 63, that would roughly be a change from a t score of 2 .01 to t score of 2 .01...