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 6 randomly selected students are 72, 72, 71, 64, 75 and 64. I = Ex: 12.340 %3D Margin of error at 95% confidence level = Ex: 1.23 C %3D 95% confidence interval = [ Ex: 12.34 Ex: 12.34 ] (smaller value, larger value] %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 6
randomly selected students are 72, 72, 71, 64, 75 and 64.
I = Ex: 12.340
%3D
Margin of error at 95% confidence level = Ex: 1.23
C
%3D
95% confidence interval = [ Ex: 12.34 Ex: 12.34 ]
(smaller value, larger value]
%3D
Transcribed Image Text: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 6 randomly selected students are 72, 72, 71, 64, 75 and 64. I = Ex: 12.340 %3D Margin of error at 95% confidence level = Ex: 1.23 C %3D 95% confidence interval = [ Ex: 12.34 Ex: 12.34 ] (smaller value, larger value] %3D
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