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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 is5 inches. The heights of6

Suppose the mean height in inches of all 9th-grade students at one high school is estimated. The population standard deviation is5 inches. The heights of6 randomly selected students are68,64,68,66,72, and69.

x = Ex: 12.34

Margin of error at99% confidence level = Ex: 1.23

99% confidence interval =[Ex:12.34 smaller value, Ex:12.34 larger value]

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