Generalizabilty of survey results example

first-year students at a certain large university are required to live on campus in one of the 24 available residence halls after their first year students have the option to live away from campus but many choose to continue living in the residence halls Estella oversees 12 of these residence halls her department surveyed a large simple random sample of first-year students who live in those 12 residence halls about their overall satisfaction with campus living Estella can safely generalize the results of the survey to which population so pause this video and see if you could figure it out alright so let's do this together so Estella has done it's a large simple random sample of first-year students so let's see choice a is only those students who were surveyed well no this was a this was a simple random sample and it was a large sample so it's meant to be indicative of all first-year students you can generalize more than just making statements about just the students who are surveyed all first-year students but only those who live in these 12 residence halls yeah I think this one looks fair because you can't generalize to people who don't live in those residence halls maybe Estella oversees the 12 best residence halls or the 12 worst residence halls and so you wouldn't get if that were the case you would not be able to generalize beyond that or these might be the 12 that are closest to campus or the 12 that are furthest from campus so you can only generalize to people who live in those residence halls all students first year not but only those who live in these 12 residence halls well the issue here is is that a 2nd year student or 3rd year student might just have a different perspective even if they live in those in that same building and we did a large random sample of first year students we didn't do a large random sample of all people in that in that those 12 residence halls so rule that out all first year students at the entire university but not students beyond their first year well this wouldn't make sense because there would be first-year students who would be outside of those residence halls and as I already mentioned the ones that Estella manages might not be indicative of where all of the first-year students in this university live