00:01
So here we have salesperson 1, salesperson 2, we have week 1, week 2, week 3, and week 4.
00:11
And let's see here, we have for week 1, 12 and 16, for week 2, 22 and 7, for week 3, 13 and 20, and for week 4, we have 8 and 13.
00:28
Then which statement is true regarding the mean and the standard deviation? well, let's see here.
00:38
If i add all of these up, so if these are my x's and these are my y's, i get the sum of my x's is equal to 12 plus 22 plus 13 plus 8.
00:58
That is 55, so then my x bar, my sample mean, is going to be that divided by 4, which is 13 .75.
01:09
The sum of my y's is going to be 16 plus 7 plus 20 plus 13, so that is 56.
01:18
That means that my mean for the y's is equal to 14, so that is greater...