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Author Question: If all possible samples of size n are drawn from an infinite population with a mean of 15 and a ... (Read 140 times)

jparksx

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on: Jun 24, 2018
If all possible samples of size n are drawn from an infinite population with a mean of 15 and a standard deviation of 5, then the standard error of the sample mean equals 1.0 for samples of size:
 a. 5 c. 25
  b. 15 d. None of these choices.

Question 2

If the coefficient of correlation is -0.81, then the percentage of the variation in y that is explained by the regression line is 81.
  Indicate whether the statement is true or false


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okolip

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Reply #1 on: Jun 24, 2018
Answer to Question 1

C

Answer to Question 2

F


jparksx

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Reply 2 on: Jun 24, 2018
Gracias!

dreamfighter72

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Reply 3 on: Yesterday
Wow, this really help

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