You are a project manager who is reviewing the estimates for the cost of materials. You therefore begin tracking the estimated cost estimates of two procurement specialists and comparing their estimates with the actual costs of the materials once ordered. You obtain the information reflected in the attached tracking table.
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Does the data indicate that either of the two procurement specialists is biased? Which one? In which direction?
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Regardless of bias, does one procurement specialist appear to be more accurate in their estimates than the other? Which one?