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CHALLENGE ACTIVITY 4.7.1: Confidence intervals for population means. 399238.1835600.qx3zqy7 Jump to level 1 1 Suppose the mean height in inches of all 9th grade students

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CHALLENGE ACTIVITY 4.7.1: Confidence intervals for population means. 399238.1835600.qx3zqy7 Jump to level 1 1 Suppose the mean height in inches of all 9th grade students at one high school is 2 estimated. The population standard deviation is 2 inches. The heights of 6 randomly selected students are 62, 69, 62, 69, 69 and 68. X = 66.5 Margin of error at 95% confidence level = Ex: 1.23 95% confidence interval = [ Ex: 12.34 Ex: 12.34 [smaller value, larger value] 1 2 Check Next Feedback

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