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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 read the
People were polled on how many books they read the previous year. How many subjects are needed to estimate the number of books read the previous year within one book with 95
95?% ?confidence? Initial survey results indicate that sigma
?equals
=19.7
19.7 books.
A 95 %
95% confidence level requires
nothing subjects.
?
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