Question
Suppose the Census Bureau reports that monthly household income for a particular region is normally distributed with mean of $5000 and a standard deviation of
Suppose the Census Bureau reports that monthly household income for a particular region is normally distributed with mean of $5000 and a standard deviation of $1500.
a) Find the probability that a randomly selected household has a monthly income greater than 6800.
b) If we take a sample of 40 household, what is the probability that the sample mean for the monthly income will be greater than $5400?
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An Introduction to Analysis
Authors: William R. Wade
4th edition
132296381, 978-0132296380
