Question
A random sample of $n=50$ city blocks is selected, and a census is done for each single-family dwelling on each block.
Step 1
This is the initial grouping stage where the population (city blocks) is divided into separate groups (clusters). Each of these clusters should reflect the diversity of the whole population. \[ \text{ Show more…
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In the sample framework of a city, the census segments (units of 50 dwellings on average) have been classified into three strata, according to socioeconomic level. The census segments (fourteen) in each stratum were selected, followed by a fifth of the households in the chosen census segment. Finally, only one adult per household will be chosen. For each stratum, the number of dwellings and the standard deviation of the variable number of adults per household are available. 800 adults were selected.
$\mathrm{A}(\mathrm{n})$__________ sample is obtained by dividing the population into homogeneous groups and randomly selecting individuals from each group.
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Ten homes are randomly selected and all adult occupants are surveyed.
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