Simple Random Sample. An important element of this chapter is the concept of a s

Question

Simple Random Sample. An important element of this chapter is the concept of a simple random sample. What is a simple random sample? When the Bureau of Labor Statistics conducts a survey, it begins by partitioning the United States adult population into 2,007 groups called primary sampling units. Assume that these primary sampling units all contain the same number of adults. If you randomly select one adult from each primary sampling unit is the result a simple random sample? Why or why not? Refer to the primary sampling units described in part h and describe a sampling plan that results in a simple random sample.

Explanation / Answer

a) Simple random sample of sample size n is sample in which each set of n elements in the population has an equal chance of selection.

b) This is not a simple random sample, because here the 1 adult from 2007 primary sampling units comprising n number of adults, do not have an equal chance of being selected.

c) Number the adults in each sampling unit from 00 to 01. And use random number table to randomly select 1 adult from the sampling units.

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