12.

According to a report published by the Pew Research Center in February 2010, 61% of millennials ( Americans in their teens and 20s) think that their generation has a unique and distinctive identity ( N = 527).

a. Calculate the 95% confidence interval to estimate the percentage of millennials who believe that their generation has a distinctive identity as compared with the other generations ( generation x, baby boomers, or the Silent Generation). The upper bound is

the lower bound is