Quote:
Originally Posted by Bill14564
Your statistic was overweight or obese at 78%. Obesity is 42% but there is some percentage of the population that contributes to the overweight category. If the combined overweight or obese percentage of the US is in the 70s then your statistic looks more like a random sampling than a significant indicator.
Unfortunately, I have forgotten the equations for determining statistical significance.
|
Using a two tailed test, if I recall correctly (it has been awhile since I studied this without a computer:
Come up with a null hypothesis.
Create an alternative hypothesis.
Arrive at the significance level.
State the test you will use
Determine sample size
determine standard deviation..
Arrive at the t-score and the degrees of freedom
Use a t-table marked with the sd and the two ends sd/.5
Why are we doing this?