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Author Question: A large mail house which mails such items as catalogues, magazines, and other bulk mailings ... (Read 101 times)

Frost2351

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A large mail house which mails such items as catalogues, magazines, and other bulk mailings guarantees that there will be no more than a 3 error rate on its mailing labels. A customer who contracted a mailing to 190,000 individuals experienced a return of 5,900 items, which had incorrect addresses. Which of the following statements is true?
 a. There is a 3 chance of an incorrect return.
  b. There is a 0.0054 probability that a return of 5900 or more incorrect addresses could occur if the true error rate is 3.
  c. There is a 0.4964 probability that a return of 5900 or more incorrect addresses could occur if the true error rate is 3.
  d. There is a 2.69 percent possibility that a return of 5900 incorrect addresses could occur if the true error rate is 3.
  e. None of these statements are correct.

Question 2

The average sales per customer at a home improvement store during the past year is 75 with a standard deviation of 12 . The probability that the average sales per customer from a sample of 36 customers, taken at random from this population, exceeds 78 is:
 a. 0.4332.
  b. 0.0668.
  c. 0.0987.
  d. 0.9013.
  e. 0.5000



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momo1250

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Answer to Question 1

B

Answer to Question 2

B




Frost2351

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Reply 2 on: Jun 24, 2018
YES! Correct, THANKS for helping me on my review


aliotak

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Reply 3 on: Yesterday
Gracias!

 

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