# Sample Size and Power (SSP)

“Statistical power analysis addresses the question “How large a sample do I need?

## Overview

Statistical power analysis addresses the question “How large a sample do I need?”

In this course, you’ll be introduced to the concepts of sample-size estimation, including when and why this might be necessary. We will cover the basic principles of precision-based and power-based sample size calculations. Using an Excel template developed by our trainers, we will learn how to perform sample size calculations, as well as discuss practical examples and issues.

# What You Will Learn!

– Brief Overview of Variation and Distributions

– Basic Ideas in Hypothesis Testing: Type-I and Type-II Errors

– Principles of Power and Sample Size Calculations

– Usage of Excel Template developed by Ekaagra

– Power and Sample Size Calculations using R Programming Language