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
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 73, 73 65, 71, 60 68 66 74 and 60 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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