00:01
The following is the solution for number 27.
00:02
This looks at the mean systolic blood pressure being less than 130 for a certain floor for like a nursing student.
00:09
And first we look to see if the conditions for inference have been met.
00:13
And you're given a normal probability plot.
00:18
I did not mean to do that.
00:20
Normal probability plot.
00:21
So this is what it kind of looks like in your book.
00:24
So you don't have to do that.
00:25
But as long as it's linear, then we can assume normality.
00:28
So that's one condition for inference.
00:30
And then the other one is a box plot.
00:32
And that kind of tells us if there are any outliers or skewness.
00:36
So this is what it kind of looks like for you.
00:38
And this definitely does not have any outliers.
00:40
There are no stars in the outside.
00:42
And then that really looks pretty darn good to me...