For example, the accuracy of the caliper is 0.01 mm (=10 micrometer).If you got the data were, 120, 100, 60, 110, 130, 90 micrometer. What's the correct mean and stander deviation value to appear? Why? It 's basic science, but we also can see the mistakes on publish paper
Jill Mathew
To represent the full picture of any statistical data using two real numbers, we need mean and standard deviation.
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Chih-hung Kuo
As the case, the data are 120, 100, 60, 110, 130, 90 micrometer, the mean value is 101.6666... and the SD is 27.8327...。
so, the mean you will 101.67+/-27.83 ? 101.6 +/- 27.3? 102+/- 28? or 100+/- 30 micrometer?
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