Which is true about a 90% confidence interval based on a given sample? i. the interval contains 90% of the population. ii. results from 90% of all samples will lie in this interval. iii. the interval is smaller than a 95% confidence interval would be?

Benefiting gif hebr hen ben bb i don’t know if you want me or not but i’m just

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.