< 10. Critical Thinking Sam computed a 90% confidence interval for p from a specific random sample of size
n. He claims that at the 90% confidence level, his confidence interval contains w. Is his claim correct?

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.