<PRE><B>Question 1028909</B>
Is p = 0.86 a statistics p-value?  If not, what is it?
:
if we assume a standard normal distribution
:
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consider the first two confidence intervals with p = 0.86 
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upper 95% limit = sample mean + (standard error for sample mean(SEM) * 1.96)
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13.9 = 11.3 + (SEM * 1.96)
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SEM = (13.9 - 11.3) / 1.96 = 1.326530612
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sample size = (critical value * SEM / margin of error (ME))^2
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note that ME for a 95% confidence interval is 0.05
:
sample size = (1.96 * 1.326530612 / 0.05)^2 is approx 2704</PRE>