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Please make the answers for these few problems clear, thank you! CHALLENGE ACTIVITY 6.2.1: Confidence intervals for population means. 377804.2350104.qx3zay7 V Jump to level 1

Please make the answers for these few problems clear, thank you!

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CHALLENGE ACTIVITY 6.2.1: Confidence intervals for population means. 377804.2350104.qx3zay7 V 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 4 inches. The heights of 6 randomly selected students are 68, 68, 63, 72, 63 and 74. = Ex: 12.34~ Margin of error at 95% confidence level = Ex: 1.23 95% confidence interval = [ Ex: 12.342 Ex: 12.34 ~ ] [smaller value, larger value] 2 Check Next

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