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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 138 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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  • Posts: 584
Reply 2 on: Jun 24, 2018
Great answer, keep it coming :)

ricroger

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Reply 3 on: Yesterday
Thanks for the timely response, appreciate it

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