To determine monthly rental prices of apartment units in the San Francisco area,
ID: 3070622 • Letter: T
Question
To determine monthly rental prices of apartment units in the San Francisco area, samples were constructed in the following ways. Which of the following is a cluster sample?
Number all the units in the area, and use an online random-number generator to select the apartments to include in the sample.
Divide all the apartment units according to number of bedrooms, and then take a simple random sample from each of the groups.
Divide all the apartment units according to ZIP codes. Then select 5 ZIP Codes at random, and include all apartment units in these 5 selected ZIP Codes.
Look in the newspaper and consider the first 10 apartment units that list rent per month.
Call every 50th apartment complex listed in the Yellow Pages, and record the rent of the unit.
A.Number all the units in the area, and use an online random-number generator to select the apartments to include in the sample.
B.Divide all the apartment units according to number of bedrooms, and then take a simple random sample from each of the groups.
C.Divide all the apartment units according to ZIP codes. Then select 5 ZIP Codes at random, and include all apartment units in these 5 selected ZIP Codes.
D.Look in the newspaper and consider the first 10 apartment units that list rent per month.
E.Call every 50th apartment complex listed in the Yellow Pages, and record the rent of the unit.
Explanation / Answer
In cluster sampling we divide the population in to number of groups (clusters) and select a clusters (groups) and all the elements in cluster are included in the sample.
Hence Divide all the apartment units according to ZIP codes. Then select 5 ZIP Codes at random, and include all apartment units in these 5 selected ZIP Codes. Is cluster sampling.
Hence "C" is the correct answer.
Hope this will help you. Thank you :)
Related Questions
drjack9650@gmail.com
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.