100 people who regularly buy eggs are needed to do a survey on a new brand of packaged eggs. After chatting to a random sample of 500 people, we found 75 egg buyers. Then, how many people in a random sample do we need to interview to reach a total of 100 people who regularly buy eggs?
Statistics "Ramdom Sample" Question Help?
we have seen that 75/500 are egg buyers.
find n such that
(75 / 500 ) * n = 100
n = 5000/75
n = 666.6666666
we likely need to sample 667 people to get 100 egg buyers
Reply:666 and 2/3. its a simple proportion. 500/75=x/100
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