John Would like to conduct a survey in his neighborhood to get homeowners opinion on Delmarva proposal to switch to natural gas. Which of the following is an example of a stratified sample?
A. John divides the population into two story, split level, and ranch houses. Then, he selects a proportional amount of houses from each group
B. John selects every third house on each street
C. john selects the first 25 homes that he passes as he walks into the entrance of the development
D. john randomly chooses three streets and selects every third house on those streets
Here in this Question the john wanted to construct the survey in his neighbourhood to get the homeowners opinion on delmarva proposal to switch natural gases.
So here John wants to conduct the stratified sampling so the john must have to divide the population into two story, split level nad ranch Houses then he should select the proportional ammount of Houses from each group.
Here, remember that stratified random sampling is the method of sampling in which we divide whole population into homogeneous group then we have to select the random sample from each group independently.
So here is the simple answer of stratified random sampling.
Hope you understood then RATE POSITIVE ?. In case of any queries please feel free to ask in comment box.
Thank you.
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