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Author Question: If the standard deviation of a normal distribution were equal to 15 and someone had a raw score of ... (Read 28 times)

Kikoku

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on: Jun 20, 2018
If the standard deviation of a normal distribution were equal to 15 and
  someone had a raw score of 122, which fell at the 90th percentile, then
  the mean
 
  a. must be greater than 122
  b. must be less than 122
  c. must be between 90 and 122
  d. could not be found from the above information

Question 2

The percentile value for a given raw score must always be at least 50 or
  above whenever
 
  a. the mean is greater than the raw score
  b. the raw score is more than 1 percentage point away from the mean
  c. the equivalent z score is greater than 50
  d. the equivalent z score is positive


abctaiwan

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Reply #1 on: Jun 20, 2018
Answer to Question 1

Beautifully done Thanks

Answer to Question 2

d


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Kikoku

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Reply #2 on: Jun 20, 2018
Thank you


abctaiwan

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Reply #3 on: Jun 20, 2018
No problem :)


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