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Author Question: A set of n = 25 pairs of scores (X and Y values) has a Pearson correlation of r = 0.80. How much of ... (Read 171 times)

FButt

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on: Jun 20, 2018
A set of n = 25 pairs of scores (X and Y values) has a Pearson correlation of r = 0.80. How much of the variance for the Y scores is predicted by the relationship with X?
 
  A) 0.36 or 36
  B) 0.20 or 20
  C) 0.80 or 80
  D) 0.64 or 64

Question 2

Which of the following is directly addressed by the null hypothesis?
 
  A) The population before treatment
  B) The population after treatment
  C) The sample before treatment
  D) The sample after treatment


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Ddddd

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

D

Answer to Question 2

B


FButt

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

TheNamesImani

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

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