Help stuck on this one, I keep getting them incorrect.

Jump to level 1 Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 4 inches. The heights of 9 randomly selected students are 67, 63, 72, 63, 70, 72, 73, 60 and 75 c = Ex: 12.34 + Margin of error at 95% confidence level = Ex: 1.23 95% confidence interval = [ Ex: 12.34 Ex: 12 34 [smaller value, larger value] 2 Check Next