In a survey of 31 students at a local high school, 15 support changing the school's mascot. Find the 95% confidence interval for the true population proportion of students who support changing...

In a survey of 31 students at a local high school, 15 support changing the school's mascot. Find the 95% confidence interval for the true population proportion of students who support changing school's mascot.


Choose the correct confidence interval and critical value used in the calculation.