State police set up a roadblock to estimate the percentage of cars with​ up-to-date registration,​ insurance, and​ safety-inspection stickers. It would be too inconvenient and costly to check every...


State police set up a roadblock to estimate the percentage of cars with​ up-to-date registration,​ insurance, and​ safety-inspection stickers. It would be too inconvenient and costly to check every vehicle that passes through a​ checkpoint, so they decide to stop about​ 1/20 of the vehicles.


Why would a simple random sample be unreasonable for this​ situation?




A.


Nonresponse bias is​ present, since drivers can choose to not go through the checkpoint.






B.


If the police used a list of registered​ automobiles, they would have to track down the​ owners, and unregistered vehicles would not be on the list.






C.


Response bias is​ present, since not everyone owns a car.






D.


There are no problems with using a simple random sample.





Jun 03, 2022
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