Ishan Goel

Ishan Goel

Nov
04
The Multiple Comparison Problem

The Multiple Comparison Problem

A special thanks to Georgi Georgiev who reviewed the simulational results presented in this blog post and helped me remove
8 min read
Oct
04
The Assumption of Randomization

The Assumption of Randomization

In the early 20th century, a scientist, R.A. Fisher wanted to study the impact of various fertilizers on the
7 min read
Sep
18
The Assumption of IID

The Assumption of IID

As a statistician, you soon find out that more often than not data carries deeply embedded scars from the process
8 min read
Sep
04
Region of Practical Equivalence (ROPE)

Region of Practical Equivalence (ROPE)

A/B Tests by design have an annoying habit that you will realize as you attain maturity in experimentation. As
7 min read
Sep
04
The Assumption of Stationarity

The Assumption of Stationarity

A graduate-level statistics course would usually start with an innocuous discussion on the mean, median, and mode and the fundamentals
5 min read
Aug
22
Principles: Goal orientation in a multi-level perspective

Principles: Goal orientation in a multi-level perspective

This note is the second of a seven-part series of the book Principles by Ray Dalio. The introductory note can
3 min read
Aug
17
Principles: Everything is a Machine

Principles: Everything is a Machine

This note is the first of a seven-part series of the book Principles by Ray Dalio. The introductory note can
3 min read
Aug
16
The Perspective of Failure

The Perspective of Failure

Success is a charm, struggle still has some dignity to it but failure seems like a dark ink blot on
5 min read
Jul
30
Effect-Size Sample-Size Tradeoff: A Counter-Intuition

Effect-Size Sample-Size Tradeoff: A Counter-Intuition

Context: This is the fourth article in the series, The Statistical Nuances in Experimentation. The parent blog will give you
4 min read
Jul
23
Optimizing the Sample Sizes

Optimizing the Sample Sizes

Context: This is the third article in the series, The Statistical Nuances in Experimentation. The parent blog will give you
6 min read