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Author Question: The distribution of annual incomes of a sample of college graduates is normally distributed with a ... (Read 128 times)

2125004343

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on: Jun 24, 2018
The distribution of annual incomes of a sample of college graduates is normally distributed with a mean of 52,000 and a standard deviation of 1,000. About 68 percent of the incomes lie between what two income levels?
 
  A) 52,000 and 62,000
  B) 50,000 and 60,000
  C) 51,000 and 53,000
  D) 53,000 and 57,000

Question 2

Calculate the margin of error of the 99 confidence interval.
 
  A) 1.85
  B) 3.60
  C) 6.41
  D) 10.56


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covalentbond

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Reply #1 on: Jun 24, 2018
Answer to Question 1

C

Answer to Question 2

C


2125004343

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Reply #2 on: Jun 24, 2018
Thank you


covalentbond

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Reply #3 on: Jun 24, 2018
No problemo


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