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To assess the accuracy of a laboratory scale, a standard weight (with known value) is repeatedly weighed a total of n ti
Posted: Wed Dec 15, 2021 10:37 am
by answerhappygod
- To Assess The Accuracy Of A Laboratory Scale A Standard Weight With Known Value Is Repeatedly Weighed A Total Of N Ti 1 (85.68 KiB) Viewed 73 times
To assess the accuracy of a laboratory scale, a standard weight (with known value) is repeatedly weighed a total of n times, and the mean x of the sample weights is computed. Suppose the scale readings are Normally distributed, with unknown mean u and standard deviation o = 0.01 g. How large should n be, so that a 90% confidence interval for u has a margin of = error of + 0.001? Round it up. 271