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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 2 inches. The
Suppose the mean height in inches of all 9th grade students at one high school is estimated. The population standard deviation is 2 inches. The heights of 10 randomly selected students are 74, 66, 67, 69, 68, 73, 66, 68, 62 and 60.
x =
Margin of error at 95% confidence level =
95% confidence interval = [ , ]
[smaller value, larger value]
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