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Chapter 4: Q 41. (page 230)

An example of a non-sampling error that can reduce the accuracy of a sample survey is

(a) using voluntary response to choose the sample.

(b) using the telephone directory as the sampling frame.

(c) interviewing people at shopping malls to obtain a sample.

(d) variation due to chance in choosing a sample at random.

(e) inability to contact many members of the sample.

Short Answer

Expert verified

The correct option is (e) inability to contact many members of the sample.

Step by step solution

01

Given information

The non-sampling mistake that might impair a sample survey's accuracy

02

Concept

A simple random sample (SRS) of size n is made up of n people chosen from the population with an equal chance of being the sample that is actually chosen.

03

Explanation

In the question, we need to find an example of a non-sampling error that can lower the accuracy of a sample survey. As a result, option (e) is the proper choice, as the inability to contact a large number of members of the sample is deemed a non-response, which is a non-sampling mistake. As a result, this is an example of a non-sampling error that can impair a sample survey's accuracy.

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Most popular questions from this chapter

Sampling frame Ideally, the sampling frame in a sample survey should list every individual in the population, but in practice, this is often difficult.

Suppose that a sample of households in a community is selected at random from the telephone directory. Explain how this sampling method results in under coverage that could lead to bias.

Two essential features of all statistically designed experiments are

(a) comparing several treatments; use the double-blind method.

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