APFIVE 10 Percent Condition for Difference in Means
A statistician samples 120 students from a school of 800 students and 150 students from another school of 900 students without replacement to compare mean GPAs. What is the appropriate conclusion about the standard deviation of the difference in sample means?
A
It is larger than the formula indicates.
B
The difference from the formula is negligible.
C
It is exactly equal to the formula for sampling with replacement.
D
It is smaller than the formula indicates by a non-negligible amount.
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