A business owner usually requests freelancers to work with, where he pays his freelancers an average hourly-rate of $15.90 with a standard deviation of $1.50. If the hourly-rates are approximately normally distributed, a) What percentage of the freelancers receive hourly-rate between $13.75 and $16.22? b) What is the hourly-rate that the highest 5% of the freelancers earn greater than it?

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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QUESTION:
A business owner usually requests freelancers to work with, where he pays his
freelancers an average hourly-rate of $15.90 with a standard deviation of $1.50. If
the hourly-rates are approximately normally distributed,
a) What percentage of the freelancers receive hourly-rate between $13.75 and
$16.22?
b) What is the hourly-rate that the highest 5% of the freelancers earn greater
than it?
Transcribed Image Text:QUESTION: A business owner usually requests freelancers to work with, where he pays his freelancers an average hourly-rate of $15.90 with a standard deviation of $1.50. If the hourly-rates are approximately normally distributed, a) What percentage of the freelancers receive hourly-rate between $13.75 and $16.22? b) What is the hourly-rate that the highest 5% of the freelancers earn greater than it?
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