| A | B |
|---|
| random sampling error | variation due to chance in choosing a random sample |
| type of error covered by margin of error calculation | random sampling error |
| sampling errors | come from the act of choosing a sample |
| undercoverage | type of sampling error |
| when some pop. groups are left out of process of choosing sample | undercoverage |
| processing errors | mechanical mistakes |
| nansampling error | include processing and response errors |
| response error | when a subject gives an incorrect response |
| nonresponse | failure to obtain data from an individual selected for a sample |
| substitute other houdseholds or weight the responses | how to live with nonsampling errors |
| stratified random sample | sampling frame divided into distinct groups with SRS taken within those groups |
| cluster | census taken within a small part of a larger group |
| response error | can be caused by wording of questions |
