Question

A sample of households in a community is selected at random from the telephone directory. In this community, 4% of households have no telephone, 10% have only cell phones, and another 25% have unlisted telephone numbers. The sample will certainly suffer from which of the following?

a) undercoverage.
b) false responses.
c) nonresponse.

Answer 1

Answer: a) undercoverage.

Explanation:

• Undercoverage: It is a kind of selection bias. When some data is represented inaccurately in a survey, then we call it suffer from undercoverage.
• False response: It means the survey shows false results.
• Non response: It means the survey shows no response.

Here, 4% of households have no telephone, 10% have only cell phones, and another 25% have unlisted telephone numbers.

It shows that data inadequately represented in the sample.

Thus, the sample will suffer from undercoverage.

Correct option: a) undercoverage.