LLENGE IVITY 5.2.1: Confidence intervals for population means. 04.2303854.qx3zqy7 Start Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is \\(3\\) inches. The heights of \\(10\\) randomly selected students are \\(68\\), \\( 60\\), \\( 65\\), \\( 68\\), \\( 63\\), \\( 75)), \\( 72\\), \\(601), \\( 65)) and \\(73\\). Ex: 12.34 \\( \\bar(x} \\) = EX: 1:23 Margin of error at \\(95\\%\\) confidence level = Ex: 12.34 : Ex: 12.34 \\(95\\%\\) confidence interval [smaller value, larger value] Check Next