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ivities CHALLENGE ACTIVITY 6.2.1: Confidence intervals for population means. 270604.2228390.qx3zqy7 Jump to level 1 Suppose the mean height in inches of all 9th grade students

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ivities CHALLENGE ACTIVITY 6.2.1: Confidence intervals for population means. 270604.2228390.qx3zqy7 Jump to level 1 Suppose the mean height in inches of all 9th grade students at one high school is 2 estimated. The population standard deviation is 6 inches. The heights of 7 randomly selected students are 68, 73, 70, 66, 67, 68 and 66. Ex: 12.34+ Margin of error at 95% confidence level = Ex: 1.23 95% confidence interval = [ Ex: 12.34 Ex: 12.34

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