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Author Question: A set of n = 10 pairs of scores has X = 20, Y = 30, and XY = 74. What is the value of SP for these ... (Read 30 times)

lbcchick

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on: Jun 20, 2018
A set of n = 10 pairs of scores has X = 20, Y = 30, and XY = 74. What is the value of SP for these data?
 
  A) 74
  B) 24
  C) 14
  D) -14

Question 2

If random samples, each with n = 4 scores, are selected from a normal population with  = 80 and  = 36, then what is the standard error for the distribution of sample means?
 
  A) 4
  B) 9
  C) 18
  D) 36


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matt

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

C

Answer to Question 2

C


lbcchick

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Reply 2 on: Jun 20, 2018
:D TYSM

xiaomengxian

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Reply 3 on: Yesterday
Excellent

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