A perfect sampling frame is an accurate list of all the members or elements of the population from which units to be sampled are to be selected.
A telephone directory is usually not an acceptable sampling frame because it does not include households that do not have landline telephones, those who obtained a phone connection after the telephone book was printed and those with unlisted numbers
Approximately we may consider the phone book as a sampling frame, but not as a sampling population.
Comments
Leave a comment