APFIVE Sample Size for a Small Proportion
A researcher is studying a rare genetic trait that occurs in approximately 2% of the population. What challenge does this present when determining an appropriate sample size for the sampling distribution of the sample proportion?
A
The sampling distribution will always be skewed
B
A much larger sample is needed than for common traits
C
The Central Limit Theorem cannot be applied
D
The standard deviation becomes unpredictable
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