The mean annual salary for chauffeurs is about $30,800. A random sample of 45 chauffeurs is selected.
Question:
The mean annual salary for chauffeurs is about $30,800. A random sample of 45 chauffeurs is selected. What is the probability that the mean annual salary of the sample is
(a) Less than $30,000 and
(b) More than $34,000?
Assume σ = $5600.
Find the indicated probabilities and interpret the results. If convenient, use technology to find the probabilities.
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Related Book For
Elementary Statistics Picturing The World
ISBN: 9780321911216
6th Edition
Authors: Ron Larson, Betsy Farber
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