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 7 randomly selected students are 67, 64, 71, 64, 65, 75 and 62. * = Ex: 12.34 Margin of error at 99% confidence level = Ex: 1.23 %3D 99% confidence interval = [ Ex: 12.34 Ex: 12.34 ] %3D

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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 7
randomly selected students are 67, 64, 71, 64, 65, 75 and 62.
2
I = 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]
1
2
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Transcribed Image Text:Jump to level 1 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 7 randomly selected students are 67, 64, 71, 64, 65, 75 and 62. 2 I = 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] 1 2 Check Next Feedback? D- D
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