A survey was sent out to re-evalute the proportion of people who play games on pc computers, as the last study on the topic had been gathered four years prior. The current study, with 861 participants, found that 53% of people who responded play on a pc computer.

Calculate the 90% confidence interval. Enter your answer in the following format: (lower_value, upper_value). Please round your values to the fourth decimal point.


문제가 이거인데

표본크기는 861이고 신뢰구간 90%로 계산하라는거까지는 이해하겠는데 주어진 53%만으로 어떻게 계산하는지 모르겠음... 알려주세요 ㅠㅠ