Statistical Inference

Statistical inference is about validating how good an estimate is.

There are two basic methods.

1. Hypothesis Testing Using Confidence intervals
- Test if null hypo falls within confidence interval


2. Hypothesis Testing Using P-values
- Test if p value is greater than alpha


Although they sound quite different, they are actually very similar, or even essentially the same.
Testing if an estimate falls within 0.95 confidence interval or if its p value is greater than alpha value of 0.05 is essentially the same logic.