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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 6 inches.

Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 6 inches. The heights of 10 randomly selected students are 67, 71, 61, 62, 69, 68, 69, 69, 63 and 60. = 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]

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