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Author Question: The standard error of the mean for a sample of 100 is 25 . In order to cut the standard error of the ... (Read 187 times)

rlane42

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on: Jun 24, 2018
The standard error of the mean for a sample of 100 is 25 . In order to cut the standard error of the mean in half (to 12.5) we must:
 a. increase the sample size to 200.
  b. decrease the sample size to 50.
  c. keep the sample size at 100 and change something else.
  d. None of these choices.

Question 2

The symbol for the sample coefficient of correlation is:
 a. r
  b.
  c. r2
  d. 2


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mcinincha279

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

D

Answer to Question 2

A


rlane42

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  • Posts: 594
Reply 2 on: Jun 24, 2018
Thanks for the timely response, appreciate it

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Reply 3 on: Yesterday
Wow, this really help

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