00:01
All right, so here on this problem, we were wanting to run a hypothesis test here.
00:04
Now, in order to run a hypothesis test, i'm going to use stat crunch here.
00:08
It looks like you're also using some type of program here.
00:11
Now, a college entrance exam is determined to score 21.
00:14
Suggest that a student is ready for college.
00:17
Company recommends the student state core curriculum math courses in high school.
00:20
We have a random sample of 250, and we get a mean of 21 .5 and a standard deviation of 3 .2.
00:28
So what i'm going to do here is go to stat.
00:32
They tell us we run a t stat here.
00:34
They got a t by there.
00:35
So i go t stats.
00:37
I'm going to go with the summary because that's what i have.
00:39
I have the summary.
00:41
The sample mean was 21 .5.
00:43
That was the mean of everything we had there, 21 .5.
00:47
Standard deviation is 3 .2.
00:50
And our sample size, we had a total of 250 students.
00:53
So that would be 250.
00:56
And we're testing the mean here...