
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Based on historical data, your manager believes that 26% of the company's orders come from first-time customers. A random sample of 85 orders will be used to estimate the proportion of first-time customers. What is the probability that the sample proportion is between 0.31 and 0.44?
Note: You should carefully round any z-values you calculate to 4 decimal places to match wamap's approach and calculations.
Answer = (Enter your answer as a number accurate to 4 decimal places.)
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