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Mathematics, 17.11.2020 17:00 cass8947

As part of a promotion for a new type of gluten free cookie, free samples are offered to shoppers in a local supermarket. The probability that a shopper will buy a pack of cookies after tasting the free sample is 0.23. Different shoppers can be regarded as independent trials. Let p-hat be the proportion of the shoppers that buy a pack of cookies after tasting a free sample. How large should your sample size be so that the standard deviation of is no more than 0.015?

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