We studied a characteristic of iron. Under the normality assumption of its distribution and using its...

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We studied a characteristic of iron. Under the normality assumption of its distribution and using its sample mean and standar

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The given 90% Confidence interval 2 2 Lower limit 2271.7688 Upper limit 2308.2312 (UL) The margin of error (E)= UL-L2 (23 08:

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