Numbers don't lie [Power / Sample Size]

posted by ElMaestro  – Denmark, 2017-12-28 20:13  – Posting: # 18118
Views: 18,817

Dear all,

today I was flipping a coin two times and recording the number of times I got tails.
I defined success as any outcome associated with two tails.

I got two tails and the experiment was a success.
What was the power, given the outcome?

At this point it is clearly experimentally proven that the coin only shows tails, so power was obviously 100%.

Some of you may insist that I was just "lucky", whatever the hell that means. To this backward perception I must clearly refer to the truth illustrated by the numbers: This was not luck, it was meant to happen by way of the nature of the coin.

Numbers don't lie. Humans do. Don't believe all the rubbish from the usual subjects in this thread, like Chewbacca and The Berlin Chimney. They are clearly not so well connected with real life as I am. It is incredible what some people can get away with nowadays.

if (3) 4

x=c("Foo", "Bar")
b=data.frame(x)
typeof(b[,1]) ##aha, integer?
b[,1]+1 ##then let me add 1


Best regards,
ElMaestro

“(...) targeted cancer therapies will benefit fewer than 2 percent of the cancer patients they’re aimed at. That reality is often lost on consumers, who are being fed a steady diet of winning anecdotes about miracle cures.” New York Times (ed.), June 9, 2018.

Complete thread:

Activity
 Mix view
Bioequivalence and Bioavailability Forum |  Admin contact
19,478 posts in 4,133 threads, 1,333 registered users;
online 14 (0 registered, 14 guests [including 9 identified bots]).
Forum time (Europe/Vienna): 21:11 CEST

But it is in matters beyond the limits of mere rule
that the skill of the analyst is evinced.
He makes in silence a host of observations and inferences…    Edgar Allan Poe

The BIOEQUIVALENCE / BIOAVAILABILITY FORUM is hosted by
BEBAC Ing. Helmut Schütz
HTML5