A First Course in Probability (10th Edition)
A First Course in Probability (10th Edition)
10th Edition
ISBN: 9780134753119
Author: Sheldon Ross
Publisher: PEARSON
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Based on historical data, your manager believes that 25% of the company's orders come from first-time
customers. A random sample of 81 orders will be used to estimate the proportion of first-time-customers.
What is the probability that the sample proportion is between 0.25 and 0.5?
(Enter your answer as a number accurate to 4 decimal places.)
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Transcribed Image Text:Based on historical data, your manager believes that 25% of the company's orders come from first-time customers. A random sample of 81 orders will be used to estimate the proportion of first-time-customers. What is the probability that the sample proportion is between 0.25 and 0.5? (Enter your answer as a number accurate to 4 decimal places.)
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