A sample of households in a community is selected at random from the telephone directory. In this community, 4% of households ha
ve 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.
<u>Undercoverage</u>: It is a kind of selection bias. When some data is represented inaccurately in a survey, then we call it suffer from undercoverage.
<u>False response</u>: It means the survey shows false results.
<u>Non response</u>: 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<u> undercoverage</u>.
