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VMariaS [17]
3 years ago
15

When you calculate the sample size for a proportion, you use an estimate for the population proportion; namely . A conservative

value for n can be obtained by using = ______ .
A.0.50
B.0.05
C.0.10
D.0.01
Mathematics
1 answer:
LuckyWell [14K]3 years ago
5 0

Answer: A. 0.50

Step-by-step explanation:

The formula to find the sample size : n=p(1-p)(\dfrac{ z^*}{E})

, where p= Prior estimate of population proportion.

E= Margin of error

z* =Critical z-value.

When , we do not have prior estimate of population proportion , we use p= 0.5 because at p=0.5 it gives the maximum same sample size for the corresponding confidence interval and margin of error.

Therefore , the conservative value for n can be obtained by using p=0.50.

Therefore , the correct answer is A.0.50 .

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