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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 10

randomly selected students are 72, 62, 73, 72, 66, 61, 65, 74, 71 and 61. x¯=

Margin of error at 95% confidence level =

95% confidence interval =[ Ex. 12.34, Ex. 12.34]

[smaller value, larger value]

**1**2

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Answered by amiriqbaldbg on coursehero.com

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