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CHALLENGE ACTIVITY 5.7.1: Confidence intervals for population means. 361666.1905872.qx3zqy7 Jump to level 1 1 Suppose the mean height in inches of all 9th grade students

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CHALLENGE ACTIVITY 5.7.1: Confidence intervals for population means. 361666.1905872.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 3 inches. The heights of 7 randomly selected students are 74, 66, 68, 63, 73, 75 and 65. C = Ex: 12.34+ Margin of error at 99% confidence level = Ex: 1.23 99% confidence interval = [ Ex: 12.34 Ex: 12.34 [smaller value, larger value] 1 2 Check Next Feedback

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