Question 1188626
yellow point estimate is 158/603=0.262
half-interval for 90% CI is z(0.95)*sqrt(0.262*0.738/603)
=1.645*0.0179
=0.0295
The interval is [0.233, 0.291]
since 0.25 is included in the interval, the true proportion could be 0.25 (percentage=25%).The results do not contradict expectations.