ifa cojo major wants to estimate the proportion of people in america who still read a newspaper (for those who don't know, a newspaper is like a wooden ipad used only for reading blogs). they randomly select 348 people throughout the country and 20 of them are still reading a newspaper. find a 83% confidence interval for the proportion of americans reading newspapers. 256 out of 306 chicks grow up to be hens (female) find a 92% confidence interval for the proportion of chicks that are female.
