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Confidence intervals for population means Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard

Confidence intervals for population means
Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 5 inches. The heights of 8 randomly selected students are 75, 64, 65, 60, 62, 64, 61 and 68. C = 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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