Exercise.6 Selection of simple random sampling using lottery method and random numbers Simple Random sampling (SRS) The basic probability sampling method is the simple random sampling. It is the simplest of all the probability sampling methods. It is used when the population is homogeneous. When the units of the sample are drawn independently with equal probabilities. The sampling method is known as Simple Random Sampling (SRS). Thus if the population consists of N units, the probability of selecting any unit is 1/N. A theoretical definition of SRS is as follows Suppose drawn sample of size n from a population ...
Simple Random Sampling UNIT 2 SIMPLE RANDOM SAMPLING Structure 2.1 Introduction Objectives 2.2 Methods of Selection of a Sample Lottery Method Random Number Method Computer Random Number Generation Method 2.3 Properties of Simple Random Sampling Merits and Demerits of Simple Random Sampling 2.4 Simple Random Sampling of Attributes 2.5 Sample Size for Specific Precision 2.6 Summary 2.7 Solutions/Answers 2.1 INTRODUCTION Simple random sampling refers to the sampling technique in which each and every item of the population is having an equal chance of being included in the sample. The selection is thus ...
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