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1 . The president of Doerman Distribution, Inc. believes that 30% of the firm's orders come...
1 . The president of Doerman Distribution, 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. a. Assume that the president is correct and p-0.3. What is the sampling distribution of p for this study? b. What is the probability that the sample proportion p will be between 0.2 and 0.4? c. What is the probability that the sample proportion will be between 0.25 and 0.35
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