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Author Question: The variance of a sample of 81 observations is 64 . The standard deviation of the sample is which of ... (Read 72 times)

amal

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on: Aug 1, 2018
The variance of a sample of 81 observations is 64 . The standard deviation of the sample is which of the following?
 a. 9
  b. 4,096
  c. 8
  d. 6,561

Question 2

In a one-tail test, the p-value is found to be equal to 0.068 . If the test had been two-tail, the p-value would have been:
 a. 0.932
  b. 0.466
  c. 0.034
  d. 0.136


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Briannahope

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

c

Answer to Question 2

D


amal

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Reply #2 on: Aug 1, 2018
Thanks


Briannahope

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Reply #3 on: Aug 1, 2018
Welcome :)


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