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Unformatted text preview: chase more macaroni and cheese than the rest of the American population. You select 500 Americans to participate in a survey. You ask each partici-pant whether they are a college student or not, and how much macaroni and cheese they purchase per month. 2 Statistical Inference 1. What is the dierence between a population and a sample? 2. What is the dierence between a survey and a census? 3. What is statistical inference? Example : A bank wonders whether omitting the annual credit card fee for customers who charge at least $2400 in a year would increase the amount they charge on its credit card. The bank makes this oer to a sample of 200 such customers. They will then compare how much these customers charged this year with the amount that they charged last year. 1. What is the population of interest? 2. What is the sample? 3...
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- Fall '10