00:01
In this question, the r value was greater than 0, and we're going to use a one -tailed test.
00:06
So the sample size given here denoted by n, which is 15, and the alpha value, which is 0 .05.
00:12
So with the one -tailed test, let me just get the critical value.
00:19
Let's say this is the r critical value, and the area with one -tailed test, the left of this region is 0 .05.
00:26
To get the rc value here, i'm going to use the t -distribution.
00:30
So i need the degrees of freedom n -1, 15 -1, which is 14.
00:36
So to get the rc value, i'm going to use the inverse t, and the area to the left of rc, 0 .05, and the degrees of freedom, 14...