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Chapter 4: Q. 19 (page 238)

SRS of engineers? A corporation employs 2000 male and 500 female engineers. A stratified random sample of 200 male and 50 female engineers gives every individual in the population the same chance to be chosen for the sample. Is it an SRS? Explain your answer.

Short Answer

Expert verified

It is not an SRS as some samples have no chance of being selected.

Step by step solution

01

Given information

We need o find whether the given data is SRS or not

02

Explanation

A sample of size nis used in simple random sampling, and each sample of size nhas an equal probability of being chosen.

In this example, the sample will include 200male engineers and 50female engineers chosen randomly.

This sample, however, will not be a simple random sample, as some samples will have no probability of being chosen (for example, a sample of 250guys), while others will have a possibility of being chosen.

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