This chapter presents direct estimates for the residential population of the State of Washington during the time period of the survey, which was 1993-1994. These estimates are made for the whole state only, as the sample was not designed in terms of size, stratification, or weighting to make direct local estimates. Indirect estimates for small areas are presented in the next chapter. It was designed to sample different strata by age, sex, ethnicity and poverty in such a way that overall state estimates could be generated for the household population age 18 and older. The estimates are generated by analyzing the responses of the 7001 persons who were interviewed with persons from each sampling stratum weighted in proportion to their representation in the state population.
Weighting is based on household size followed by poststratification weights.
The results are for the period 1993-1994 during which the survey was completed. The poststratification weighting could be made to the population totals or to the totals for the residential population only. Institutions were not sampled directly, nor were group quarters, but depending on the type of group quarters involved, persons may or may not have been included in the sample. For example, some college dormitories have private telephones while others rely on pay telephones in the halls. Some nursing homes have individual telephones while others have none.