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YuleMsee wa Thafu
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Solution Our p in this case is 0.85 Our q will be 1-p, which is 1-0.85 The Margin of Error will be 0.05, Z*-value will be 1.645, as read from the table Therefore, n will be given by n= pq(z/ME)2 n= 0.85*(1-0.85) *{1.645/0.05)2 n=138.0007, approx. 138
