Suppose the mean neight 9th grade one high s estimated. The population standard deviation is 3 inches. The heights of 9 randomly selected students are 64. 62, 72, 61, 61, 62, 72, 71 and 69. E = Ex: 12.34 Margin of error at 95% confidence level = Ex: 1.23 95% confidence interval = [ Ex: 12.34 Ex: 12.34 ] femaller value Jarcer valuel

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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 3 inches. The heights of 9
randomly selected students are 64, 62, 72, 61, 61, 62, 72, 71 and 69.
T = Ex: 12.34
Margin of error at 95% confidence level = Ex: 1.23
95% confidence interval = [ Ex: 12.34
Ex: 12.34 ]
[smaller value, larger value]
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 3 inches. The heights of 9 randomly selected students are 64, 62, 72, 61, 61, 62, 72, 71 and 69. T = Ex: 12.34 Margin of error at 95% confidence level = Ex: 1.23 95% confidence interval = [ Ex: 12.34 Ex: 12.34 ] [smaller value, larger value]
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