The mean monthly income of graduates of professional and Ph.D. degrees is $6,000 according to a recent

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The mean monthly income of graduates of professional and Ph.D. degrees is $6,000 according to a recent PEW Research Center survey. If these incomes are normally distributed with a standard deviation of $1,200,

a. What proportion of incomes is greater than $4,900?

b. Calculate the proportion of incomes that fall between $3,800 and $5,700.

c. Calculate the proportion of incomes that are less than $6,500.

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Statistics For Management And Economics

ISBN: 9781337093453

11th Edition

Authors: Gerald Keller

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Question Posted: May 23, 2018 12:05 AM

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The mean monthly income of graduates of professional and Ph.D. degrees is $6,000 according to a recent

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Statistics For Management And Economics

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