Question 1197465
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Hi  
n = 357   p = 17/357 = .0476  and q = 1 - .0476 = .9524 
99.5% confidence interval ⇒  z = 1.96  2-sided   Invnorm(.995 + .5/2 ) = 2.807
ME = {{{z*sqrt((p(1-p))/n) = 2.807*sqrt((.0476)(.9524)/357))}}}= .032
.0476 - .032 < p < .0476 + .032
.016 < p < .080
 0r
p = .0476 ± .032
always check the Arithmetic
Wish You the Best in your Studies.
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