basic α, β, N, & effect size

Sideways Stats

Confidence ranges in a probability curve

Primer on probability curves
Sideways Type I error

Sideways Type I and Type II errors
beta = 0.50

Interaction of alpha and beta
Sample size and statistical power

Impact of sample size
Large effect size makes beta low

Impact of effect size
Finding the right hypothesis

When “not significant” is not failure
Truncated probability curves

Checking an upper-bound hypothesis
freeman.blue - main page

Freeman​.blue – Main page