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What is the bias of the micrometer

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Reference no: EM132188177

A calibrated micrometer was used to take 10 replicated measures of a reference standard. If X bar m= 0.073, and the true value of the reference standard is 0.075, what is the bias of the micrometer?

When σ = 10, what sample size is needed to specify a 95% confidence interval of ±3 units for the mean?

Reference no: EM132188177

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