In other news, I am now convinced that the Vitamin Water is magic, as I seem to be pretty much all better today. So that's something.
River ,'Safe'
Natter 39 and Holding
Off-topic discussion. Wanna talk about corsets, duct tape, or physics? This is the place. Detailed discussion of any current-season TV must be whitefonted.
I've never thought of it as magic, but I have thought of it as crack.
As Jesse says, just by knowing the sample size you can get what pollsters call margin of error, which is a broad concept that applies to all of the numbers in their poll. It's fairly useless from a statistical standpoint, but good enough to tell whether you should take the numbers seriously at all.
If you want a specific confidence interval for your .56 you compute the standard error. You take the square root of:
(.56*(1-.56)/N where N is the sample size.
Then once you have the standard error you multiply it by the factor that will give you a given confidence interval. For instance, + or - 1.96 times the error gives you a 95% confidence interval for the percentage.
I've never thought of it as magic, but I have thought of it as crack.
Possibly that too, and I'll only feel good as long as I keep drinking it.
It is truly pathetic how fast I forgot everything I "learned" in stats class last year.
Whenever I see vitamin water or smart water or any of the other kinds of minorly doctored waters, I think of miracle-gro. I can't help it. Maybe it was one too many years of grade school "which is the best fertilizer" experiments.
Here's my concern (because, yeah, I started with margin of error and then decided I was on the wrong track). Can I call "the folks who actually answered" (in other words, the 56%) my sample size? Or is my sample size the entire population, all of whom were contacted?
There is an unopened can of chicken noodle soup in the work freezer. It baffles me to the point of obsessive speculation.
Do they know canned soup isn't perishable? Are they trying to see how long it takes to freeze? Is it some kind of bet? Does it taste better frozen? Did somebody forget their coffee this morning? What's the frequency, Kenneth?
Maybe they were hoping it would explode, like frozen cans of soda sometimes do. Not sure why they'd want someone to have to clean frozen chicken noodle soup out of the freezer, though.
Emergency ice pack?
Oh! OH!! Non-explosive projectile.
More damage that way.