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8.41- From a list of the 729 people who went on a cruise, 25 were randomly...

8.41- From a list of the 729 people who went on a cruise, 25 were randomly selected for interview. Of these, 21 said that they were “very happy” with the accommodations. a. What percent of the sample said that they were “very happy”? b. If you had been able to interview all 729 people, approximately how different a percentage would you expect to find as compared to your answer to part a? To answer this, please indicate which statistical quantity you are using, and compute its value.

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