Posted by Arona Basuti on .
suppose a random sample of 360 students is drawn form a population of students. Among sampled, the average IQ score is 12 with standard deviation of 3. What is the upper confidence limit of the 95% confidence interval of the population

Statistics 
Rodney,
ZInterval
(11.69,12.31)
average = 12
n = 360
upper limit is 12.31 according to my TI83 Plus calculator