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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 4 inches. The

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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 4 inches. The heights of 8 randomly selected students are 69, 60 62 75 61, 75 65 and 60 C = Ex 12.34= Margin of error at 99% confidence level = Ex: 1 28 99% confidence interval = [ Ex 12 34 Ex 12 34 ] [smaller value, larger value]

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