Homework Answers
solution:-
given that x = 55 , n = 260
point estimate p = x/n = 55/260 = 0.212
margin of error:
the value of 95% confidence from z table is 1.96
margin of error formula
=> z * sqrt(p*(1-p)/n)
=> 1.96 * sqrt(0.212*(1-0.212)/260)
=> 0.050
confidence interval formula
=> point estimate +/- margin of error
=> 0.212 +/- 0.050
=> 0.162 < p < 0.262
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