Suppose the mean height in inches of all 9th grade students at one high school is established. The population standard deviation is 6 inches. The heights of 8 randomly selected students are 66,62,73,65,75,62 and 71

CHALLENGE ACTIVITY 4.2.1: Confidence intervals for population means. 403984.1980994 qx3zay Jump to level 1 V N ( Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 6 inches. The heights of 8 randomly selected students are 66, 62, 73, 65, 61, 75, 62 and 71. c = EX: 12.34$ Margin of error at 90% confidence level = Ex: 1.23 90% confidence interval = [ Ex: 12.34 EX: 12.34 ] [smaller value, larger value] Check Next Feedback? CHALLENGE ACTIVITY 4.2.2: Relating confidence intervals to hypothesis testing (one sample) MacBook Air