Question: Given the following formulas: n=(z 2 ) 2 ( 2 ) EBM 2 n=(z2)2(2)EBM2 n=(z 2 ) 2 (p q ) EBP 2 n=(z2)2(pq)EBP2 What
Given the following formulas:
n=(z
2
)
2
(
2
)
EBM
2
n=(z2)2(2)EBM2
n=(z
2
)
2
(p
q
)
EBP
2
n=(z2)2(pq)EBP2
- What are the main differences in the formulas?
- Which formula would you use to (a) find a sample size with a given error and a known population standard deviation, and (b) find a sample size with a given error and a proportion estimate?
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