00:01
Hello, so today i'm going to answer your question about the difference in the resting metabolic rate for all the women and for doing so i'm going to use this formula this formula is the difference of means between two groups so mu1 and mu 2 is the respective mean and and s1 and s2 is the standard deviation and it's just the sample size so i start applying the formula so they tell you that the women that are runner have a resting metabolic rate of 34 while the women that are sedentary have a resting without a rate of 30, each one have 10 .5 and 10 .2 of a standard deviation.
00:38
And the sample size is the same, terry.
00:41
So what i did here was subtracting the result is 4.
00:43
Then i did this operation, raising to the square divided by 30, the same here, and then adding the results, then taking the square root, this is the result.
00:51
The result of the division is 1 .49.
00:54
Now what you need to do is convert this value, put it in absolute terms, with the ceta table.
01:02
So when this value is greater than the ceta table, you have to reject the null hypothesis in this case the value that you need to compare with is 2 .33 which means that the value is not bigger so you don't reject the new hypothesis and in practical terms that means that the resting metabolic rate is equal between sedentary and running on women that are practiced running and that is the answer so just a quick summary remember that in your case because you don't know reject the new hypothesis, you can say that the rest of the metric rate is equal...