Question: 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

  1. 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?
  2. When = 10, what sample size is needed to specify a 95% confidence interval of 3 units for the mean?

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