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Author Question: The standard deviation of a sample of 100 observations is 64 . The variance of the sample is which ... (Read 126 times)

ashley

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on: Jun 24, 2018
The standard deviation of a sample of 100 observations is 64 . The variance of the sample is which of the following?
 a. 8
  b. 10
  c. 6,400
  d. 4,096

Question 2

The following random sample from a population whose values were normally distributed was collected. 10 12 18 16 The 80 confidence interval for  is
 a. 12.054 to 15.946.
   b. 10.108 to 17.892.
   c. 10.321 to 17.679.
   d. 11.009 to 16.991.


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cadimas

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

b

Answer to Question 2

d


ashley

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Reply 2 on: Jun 24, 2018
Wow, this really help

phuda

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

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