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Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 5 inches.

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Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 5 inches. The heights of 9 randomly selected students are 60, 60, 71, 74, 66, 72, 75, 60 and 72. = Ex: 12.34 Margin of error at 95% confidence level = Ex: 1.23 95% confidence interval = [Ex: 12.34, Ex: 12.34] [smaller value, larger value] Check Next 2

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