Monthly Archives: March 2015
How I write Scientific Blog Posts That Contains Codes and Mathematical Expressions – a Quick Reference – with WordPress, Gist and Mathjax
Udacity – Inferential Statistics Hypothesis Testing – One-tail or Two-tails?
Udacity – Inferential Statistics – Hypothesis Testing – Dependent T Test for Paired Samples – The Keyboard Example
Udacity – Inferential Statistics – Hypothesis Testing – Decision Errors
Udacity – Inferential Statistics – The Hypothesis Testing Song
Have just finished the Udacity Inferential Statistics Hypothesis Testing class taught by Katie Kormanik, who has wrapped up the lesson with an awesome Hypothesis Testing Song.
(Or alternatively, this Udacity Link)
Couldn’t helped myself, I replayed the song a few time and wrote down the lyrics! (And… sang along :)
Here we go.
Hypothesis Testing
By Katie Kormanik
(This goes out to all my students from around the world…)
So you got
Some sample means
X bar is five
n is size seventeenIs it typical
Whatcha gotta know?
For the Sampling Distribution
is the way to go.You got the Samp-ling Dis-tri-bu-tion.
Oh na na na
So you got
Some populationMu is one
Sigma two
You’d need the derivation
for the Standard Deviationneed motivation
it’s as simple as Pi.
Sigma divided by square root n
Why?Cos it’s the Central…
Limit theorem…Now find your Z
Substract the mean
and divide by S.E.
What’s the probabilityIt’s not alot
Less than Alpha level you
REJECT H.0.!