In those instances in which a sample statistic is not equal to a population parameter, there are two potential explanations for the mismatch. Which of the following is one potential reason for such a discrepancy?
A. The disparity is caused by the erroneous use of the z distribution when t should have been used instead.
B. Observed differences are the product of the omitted variable bias.
C. The disparity may indicate a genuine, bona fide difference between the statistic and the parameter.
D. Any of the above is a possible explanation for an observed difference of this sort.
C. The disparity may indicate a genuine, bona fide difference between the statistic and the parameter.
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