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Author Question: For a sample of n = 100 scores, X = 45 corresponds to z = 0.50 and X = 52 corresponds to z = +1.00 . ... (Read 63 times)

Arii_bell

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on: Jun 20, 2018
For a sample of n = 100 scores, X = 45 corresponds to z = 0.50 and X = 52 corresponds to z = +1.00 . What are the values for the sample mean and standard deviation?
 
  a. M = 31 and s = 7 c. M = 38 and s = 7
  b. M = 31 and s = 14 d. M = 38 and s = 14

Question 2

For a sample of n = 30 scores, X = 45 corresponds to z = 1.50 and X = 40 corresponds to z = +1.00 . What are the values for the sample mean and standard deviation?
 
  a. M = 35 and s = 10 c. M = 35 and s = 15
  b. M = 30 and s = 15 d. M = 30 and s = 10


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Jevvish

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

D

Answer to Question 2

D


Arii_bell

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Reply 2 on: Jun 20, 2018
Great answer, keep it coming :)

ktidd

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

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