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2 years ago

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People were polled on how many books they read the previous year. How many subjects are needed to estimate the number of books r

ead the previous year within one book with 99% confidence? Initial survey results indicate that sigmaequals12.4 books.

1 answer:

Dmitry_Shevchenko [17]2 years ago

8 0

n = [z*s/E]^2

n = [2.5758*14.1/1]^2 = 1320 (rounded up)

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