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Question

$1.00 How many subjects are needed to estimate the number of books read the previous year within one book with 99% confidence?

  • From Mathematics: Statistics
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  • Due on Aug. 19, 2012
  • Asked on Aug 19, 2012 at 12:51:01PM
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71moparchallenger
71moparchallenger
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Q:

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 99% confidence? Initial survey results indicate that the standard deviation is 12.8 books.

A 99% confidence level requires_____subjects.

(round up to the nearest whole number as needed)