Multiple Choice
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.
Correct Answer:
Verified
Correct Answer:
Verified
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