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One for the stats nerds: "A Concise and Precise Definition of P-Value"



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RodneyToady
2009-11-01 08:49:44 PM


Awesome link, statmitter!

 
Msol
2009-11-01 09:37:16 PM


That was awesome.

 
horse-pheathers
2009-11-01 10:25:55 PM


Nice! The confidence interval that this link might prove useful in explaining p-values to those who don't understand them is 0.57 to 0.99 with a p-value of 0.0001......

 
Mentat
2009-11-01 10:31:01 PM


Statisticians aren't normal.

 
squidzilla
2009-11-01 10:46:34 PM


Mentat: Statisticians aren't normal.

No, they aren't. They're average.

 
yogaFLAME
2009-11-01 10:50:19 PM


Pretty good, but I'm not sure why they don't use the term "false positive." p ≤ .05 means "less than 5% chance of a false positive," which is a fairly concise way of putting it. Laypeople can relate to this concept; if nothing else, you can explain it in terms of pregnancy (or any arbitrary medical screening) tests.

 
Jaakobi
2009-11-01 10:57:16 PM


squidzilla: Mentat: Statisticians aren't normal.

No, they aren't. They're average.


LOL

 
Mentat
2009-11-01 10:59:31 PM


squidzilla: Mentat: Statisticians aren't normal.

No, they aren't. They're average.


That's just mean.

 
wildsnowllama
2009-11-01 11:15:01 PM


Mentat: squidzilla: Mentat: Statisticians aren't normal.

No, they aren't. They're average.

That's just mean.


It's a standard deviation...

 
Russ1642
2009-11-01 11:21:58 PM


This guy doesn't understand that even the readers of Science have trouble understanding what's meant by 40% POP in the weather report. I really doubt that some wording change is going to affect their confidence in a study.

 
OgreMagi
2009-11-01 11:23:01 PM


The liberal arts majors probably abandoned the link after the first paragraph.

 
Katie98_KT
2009-11-01 11:40:33 PM


OgreMagi: The liberal arts majors probably abandoned the link after the first paragraph.

not true. I read to the 2nd question or so.

/ok, so I'm getting my masters, so I'm probably above average.

 
NeauxFear
2009-11-02 12:04:07 AM


squidzilla: No, they aren't. They're average.

More like bimodal. ;)

 
musashi1600
2009-11-02 12:07:03 AM


wildsnowllama: Mentat: squidzilla: Mentat: Statisticians aren't normal.

No, they aren't. They're average.

That's just mean.

It's a standard deviation...


r you sure?

 
jesdynf
2009-11-02 12:16:29 AM


Statisticians do it but end up in trials.

 
RoyBatty
2009-11-02 12:22:14 AM


NeauxFear: squidzilla: No, they aren't. They're average.

More like bimodal. ;)


Farking mean.

 
Mentat
2009-11-02 12:25:16 AM


An engineer is working at his desk in his office. His cigarette falls off the desk into the wastebasket, causing the papers within to burst into flames. The engineer pulls out his engineering pad, does a quick calculation, grabs the fire extinguisher and sprays the fire for exactly 5.2 seconds to put it out, and goes back to work.

A physicist is working at his desk in another office and the same thing happens. He looks at the fire, looks at the fire extinguisher, and thinks "Fire requires fuel plus oxygen plus heat. The fire extinguisher will remove both the oxygen and the heat in the wastebasket. Ergo, no fire." He grabs the extinguisher, puts out the flames, and goes back to work.

A statistician is working at his desk in another office and the same thing happens. He immediately grabs a piece of paper, lights it on fire and begins setting fires throughout the room. "What are you doing???" shout his co-workers, to which he replies, "I need more data points!"

 
MrCheeks
2009-11-02 01:15:24 AM


www.citizenofthemonth.com

 
Barakku
2009-11-02 01:25:53 AM


musashi1600: wildsnowllama: Mentat: squidzilla: Mentat: Statisticians aren't normal.

No, they aren't. They're average.

That's just mean.

It's a standard deviation...

r you sure?


I see we're in pun mode

 
brassknizz
2009-11-02 01:35:08 AM


Statisticians, the only ones who care what 35% of people whom watch daytime television think.

/get your confounding variables out of my null hypothesis

 
mr lawson
2009-11-02 01:37:13 AM


Barakku: I see we're in pun mode

it's an Alpha thing

 
mr lawson
2009-11-02 01:43:31 AM


actually, I think it would be wise to step out of this thread before I regress into a dummy varible.

 
holiday_inn_in_cambodia
2009-11-02 01:59:55 AM


mr lawson: Barakku: I see we're in pun mode

it's an Alpha thing


ruh rho says Scooby

 
bhcompy
2009-11-02 02:21:06 AM


So p-value is a stuck up, holier-than-thou way of saying probability?

 
Number41
2009-11-02 02:31:50 AM


bhcompy: So p-value is a stuck up, holier-than-thou way of saying probability?

It's a specific type of probability. And it's used by everyone in all the sciences, as far as I know, so it's only as stuck up as academia as a whole is.

 
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