## Answers

we have given x= 526 , n = 955

a ) the best estimate of population proportion p is

= 0.551

b ) margin of Error (E) =

from z table z at 90% confidence level is 1.64

c ) the 90 % Ci for p =

= (524,577)

90\%90% confidence interval for the population proportion is 0.524<p<0.577

d ) option B is true

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