see attached.

An IQ test is designed so that the mean is 100 and the standard deviation is 15 for the population oI normal adults Find the sample size necessary to estimate the mean IQ score of the residents of a s.ate if you want to be 95% condent that the sample mean is within 3 IQ points of the tme mean. The required sample size is _ [Round up to the nearest whole number.) Once you have constructed the 95% confidence interval around your sample mean, how do you interpret its meaning? Choose the correct answer below. 0 A. There is 95% confidence that the interval contains the true value of the population mean. 0 B. There is 95% confidence that all individuals in the population will have measurements that fall within the interval. 0 C. There is 95% confidence that the interval contains the true value of the sample mean. ("l D. We are confident that 95% of individuals will have measurements that fall within the interval