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b. What is the probability that the sample proportion will be between 0.20 and 0.40 (to 4 decimals)? C. What is the probability that the sample proportion will be between 0.25 and 0.35 (to 4 decimals)?

b. What is the probability that the sample proportion will be between 0.20 and 0.40 (to 4 decimals)? C. What is the probability that the sample proportion will be between 0.25 and 0.35 (to 4 decimals)?

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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The president of Doerman Distributors, Inc., believes that 30% of the firm's orders come from first-time customers. A simple random sample of 100 orders will be used to estimate the proportion of first-time customers. Use z-table. a. Assume that the president is correct and p = 0.30. What is the sampling distribution of p for this study? Select your answer b. What is the probability that the sample proportion will be between 0.20 and 0.40 (to 4 decimals)? C. What is the probability that the sample proportion will be between 0.25 and 0.35 (to 4 decimals)?
Transcribed Image Text:The president of Doerman Distributors, Inc., believes that 30% of the firm's orders come from first-time customers. A simple random sample of 100 orders will be used to estimate the proportion of first-time customers. Use z-table. a. Assume that the president is correct and p = 0.30. What is the sampling distribution of p for this study? Select your answer b. What is the probability that the sample proportion will be between 0.20 and 0.40 (to 4 decimals)? C. What is the probability that the sample proportion will be between 0.25 and 0.35 (to 4 decimals)?
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