Probability, Statistics and Random Processes

6

Sampling Theory and Distribution

Prerequisites

Before you start reading this unit, you should:

• Know the binomial distribution
• Have knowledge of the normal distribution
• Know to find the solutions of equations
• Find mean and variance of any distribution

Learning Objectives

After going through this unit, you would be able to:

• Understand the different terminology in sampling theory and types of sampling techniques
• Differentiate among major sampling distributions of statistics
• Determine an appropriate sample size to estimate a population mean or proportion for a given label of accuracy and with a prescribed level of confidence

INTRODUCTION

Many a times, it is of much interest to draw valid conclusions about a large group of individuals or objects. ...