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Author Question: The lengths of human pregnancies are normally distributed with a mean of 268 days and a standard ... (Read 34 times)

neverstopbelieb

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on: Aug 2, 2018
The lengths of human pregnancies are normally distributed with a mean of 268 days and a standard deviation of 15 days. What is the probability that a randomly selected pregnancy lasts at least 300 days?
 
  A) 0.9834 B) 0.0166 C) 0.0179 D) 0.4834

Question 2

If robs falls into a rejection region, then the decision is to H0 and H1.
 
  a. accept; reject
  b. reject; accept
  c. fail to reject; not accept
  d. reject; not accept


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af

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Reply #1 on: Aug 2, 2018
Answer to Question 1

B

Answer to Question 2

B


neverstopbelieb

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Reply 2 on: Aug 2, 2018
Gracias!

31809pancho

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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