A recent survey by the American Accounting Association revealed 52% of accountants have the Certified Public Accounting
Question:
A recent survey by the American Accounting Association revealed 52% of accountants have the Certified Public Accounting (CPA) certificate. Suppose we select a sample of 15 accountants.
a. What is the random variable? How is the random variable distributed? Why?
b. What is the probability five of the 15 accountants are CPAs?
c. What is the probability seven or eight of the 15 accountants are CPAs?
d. What is the mean of the distribution of “number of CPA’s among 15 accountants”?
e. What is the variance of the distribution of “number of CPA’s among 15 accountants”?
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Step by Step Answer:
a The random variable is the count of the 15 accountants who have a CPA The ...View the full answer
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Related Book For 
Statistical Techniques In Business And Economics
ISBN: 9781260239478
18th Edition
Authors: Douglas Lind, William Marchal, Samuel Wathen
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