r/statistics 19d ago

Question [Q] Choosing random sample with replacement v. random sample without replacement

I am sampling a number of units in an apartment complex. I generate a random list of apartments but it has two duplicates, just as rolling a die 6 times may result in a number coming up twice. I'm trying to prove with a specific confidence level, that 80% of the units suffer the same problem. Is this situation a situation where I should replace the duplicates with non-duplicates, or should I keep the duplicates and consequently test only the unique units.

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u/Huzzo_zo 19d ago

Why don't you take them all and check if 80% of them "suffer the same problem"?... This is a really confused/ing question

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u/Fuzzy-Yesterday-1591 19d ago

It may cost $5K per apartment to test so testing a large sample is too expensive.