When 307 college students are randomly selected and surveyed, it is found that 128 own a car. Find a 92% confidence interval for the true proportion of all college
students who own a car.

You are dumb you will drop out of high school

First step is to get rid of the square root. remember that a square root is the same as raising to the (1/2) power. see below: multiply exponents per exponent rules to get: remember you subtract exponents from the denominator and add exponents in the numerator so: simplify further: so a is the correct choice. if you don't understand this google exponent rules and it will you understand. look at the image results.