00:01
Okay, so i see that you need help with this problem.
00:03
And so what i'm first going to do is i'm just going to take this information that is here, and i'm going to plug it into excel so that way i can get you the information that's needed.
00:18
I'm just going to center it and just make it a little bit bigger, so it's easier to see.
00:25
And so for the first part, it says the researcher wishes to determine if a person's age is related to the number of hours she, he or she exercises per week.
00:38
The data from the sample is shown below.
00:40
Compute the correlation coefficient of the sample.
00:44
So to compute the correlation coefficient, i'm going to use excel and i'm going to click on data analysis and it's on correlation.
00:54
And i'm going to highlight the numbers, and then i'm going to click okay, and the correlation coefficient is showing me that it's negative, so it's a negative slope, so as the age increases, the hours of exercise decrease.
01:15
So i'm going to bold this.
01:19
So state the hypothesis of the correlation coefficient of the population.
01:22
So it's negative, which means that as the age increases, the number of hours of exercise decrease is what it is showing.
01:43
I'm just making this a little bit bigger...