Assume the annual day care cost per child is normally distributed with a mean of $12,000 and
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Assume the annual day care cost per child is normally distributed with a mean of $12,000 and a standard deviation of $2000.
In a random sample of 120 families that use day care, how many pay more than $11,000 annually per child?
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Related Book For
A Survey Of Mathematics With Applications
ISBN: 9780135740460
11th Edition
Authors: Allen R. Angel, Christine D. Abbott, Dennis Runde
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