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A supplier of eggs to grocers nationwide studied the mean egg length of eggs produced at their farms. After randomly selecting a sample ofeggs, they
A supplier of eggs to grocers nationwide studied the mean egg length of eggs produced at their farms. After randomly selecting a sample ofeggs, they obtained a95% confidence interval of(45 mm, 60mm). What is the value of the margin oferror?
A.7.5 mm B.52.5 mm C.1.96 D.15 mm
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