Confidence Interval For Proportion
CI = p ± Z a/2 Sqrt(p*(1-p)/n)))
x = Mean
n = Sample Size
a = 1 - (Confidence Level/100)
Za/2 = Z-table value
CI = Confidence Interval
CI = (0.057, 0.129)
M.E = (0.129 - 0.057)/2 = 0.036
P^ = 0.057 + ME
= 0.129 + 0.036
= 0.093
CI = [ P ^± ME ] = [ 0.093 - 0.036 , 0.093 + 0.036 ]
Answer:
0.093-0.036<P<0.093+0.036
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