Please help with question 23 above! Thank you! During World War II, the British
ID: 3298336 • Letter: P
Question
Please help with question 23 above! Thank you! During World War II, the British Royal Air Force estimated the density of bullet holes on different sections of planes returning to base from aerial sorties. Their goal was to use this information to determine which plane sections most needed additional protective shields. (It was not possible to reinforce the whole plane, because it would weigh too much.) They found that the density of holes was highest on the wings and lowest on the engines and near the cockpit, where the pilot sits (their initial conclusion, that therefore the wings should be reinforced, was later shown to be mistaken). What is the main problem with the sample: bias or large sampling error? What part of the plane should have been reinforced?
Explanation / Answer
This is a case of sample bias. In this case we are only studying the sample containing different planes which returned to the base camps and not those which have not returned and are destroyed in the war. The protective shields should be used to reinforce engines since the pilot is there.