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re: "Half the schools are below average" - not always true
Posted on 9/30/14 at 10:39 am to CptBengal
Posted on 9/30/14 at 10:39 am to CptBengal
quote:
Go reread what I said, clown.
When we are getting testing values for schools, we are averaging the testing of the students in that school.
Then by computing the mean value to determine central tendency, we are also computing a mean.
By computing the mean of the means for a large number of students nested within schools and then calculating the central tendency of that higher population we are doing exactly what you suggest by
taking the average of a population of polls. Each school is a population.
good god man.
Again, you misunderstand statistics.
The central limit theorem only applies to randomly selected samples. Selecting your samples by school isn't random. Seriously dude, that's kinda obvious.
This post was edited on 9/30/14 at 10:41 am
Posted on 9/30/14 at 10:41 am to SpidermanTUba
quote:
Again, you misunderstand statistics
quote:
The central limit theorem only applies to randomly selected samples. Selecting your samples by school isn't random. Seriously dude, that's kinda obvious.
These samples are randomly collected. Perhaps you dont understand what randomization actually means in this case.
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