Question 1054795
p = 75/90 = 5/6  and q = 1/6
99%
a. ME = {{{z*sqrt((p(1-p))/n)}}} = ±    {{{2.576*sqrt(((5/6)(1/6))/90)}}} 
5/6 - ME < {{{mu}}} < 5/6 + ME
b.  n = {{{(z/ME)^2 (p(1-p)))}}}  = {{{(1.645/.05)^2 ((5/6)(1/6)))}}} 
2. Yes: p = 75/100 = 3/4  and q = 1/4
follow steps in a above for z = 1.645  and z = 1.96
|
 = CI	z = value
90%	z =1.645
92%	z = 1.751
95%	z = 1.96
98%	z = 2.326
99%	z = 2.576