The average fee charged by suburban accountants to do a basic tax return in Brisbane was found
Question:
The average fee charged by suburban accountants to do a basic tax return in Brisbane was found to be normally distributed with a mean of $110 and standard deviation of $15. If a random sample of 45 basic tax returns completed by suburban accountants was selected, what is the probability the sample mean fee charged will be:
(a) Larger than $105
(b) Larger than $115
(c) Between $106 and $116?
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Related Book For
Business Analytics And Statistics
ISBN: 9780730363330
1st Edition
Authors: Ken Black, John Asafu Adjaye, Paul Burke, Nelson Perera, Carl Sherwood, Saleh A. Wasimi
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