Business Statistics

Chapter 8 | Sampling and Sampling Distributions 269

8.8.2.3  Non-Response Bias

Non-response errors occur when the respondent is not available at home or the researcher is not in a

position to contact him due to some other reason. Non-response errors also occur when respondents

refuse to answer certain questions which are important from the researcher’s point of view. As a result,

it becomes difcult to obtain complete information. Due to this, very important parts of the sample do

not provide relevant and required information and this leads to non-sampling errors.

8.8.2.4  Errors in Coverage

When the objectives of the research are not clearly ...