Question
A book publisher claims that its mean book length is 250 pages with a standard deviation of 70 pages. What is the probability that
A book publisher claims that its mean book length is 250 pages with a standard deviation of 70 pages. What is the probability that for a sample of 45 randomly selected books, the mean length of a book is less than 230 pages?
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Calculus Early Transcendentals
Authors: James Stewart
7th edition
538497904, 978-0538497909
