C. To sample residents of registered nursing homes in Yorkshire, UK, I construct a list of all nursing homes in the county, which I number from 1 to 110. Beginning randomly, I choose every tenth home on the list, ending up with 11 homes. I then obtain lists of residents from 11 homes, and I select a simple random sample of residents from each list. What kinds of sampling have I used?
2 types of samplings have been used.
1) Systematic Sampling.
In this type of sampling, all members of the population are numbered sequentially. Then from a starting point (selected at random), every kth member of the population in the sample.
In the given question, the houses are numbered sequentially and then every 10th nursing home is selected.
) Stratified Sampling
In this type of Sampling, the entire population is divided into distinct subgroups on the basis of specific charteristics (the characteristic here being the residents of a specific nursing home), and then random samples are drawn from each subgroup(as seen in the list of residents that is used to select random samples from each nursing home).
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