Question 1182850
p hat is 90/1594=0.0565
half-interval is z(0.975)*sqrt(phat*(1-phat)/n)
=1.96*sqrt(0.0565*0.9435/1594)
=0.0113
the interval is (0.0452, 0.0678)
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About 95% of the CI would contain the true pop. proportion and about 5% would not. One would not know which 95 and 5, however.