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A standard method for the determination of glucose in serum is reported to have a standard deviation of 0.40 mg/dL.
A standard method for the determination of glucose in serum is reported to have a standarddeviation of 0.40 mg/dL. The standard deviation determined by this method is a good estimate ofthe “true” population standard deviation (σ). How many replicate determinations should be madefor the mean for the analysis of a sample to be within 0.3 mg/dL of the true mean 95% of the time?How many replicate determinations should be made for the mean for the analysis of a sample to be within 0.2 mg/dL of the true mean 95% of the time?(Hint: If s is determined to be a good approximation of σ, the value of student’s t comes from thebottom row of Table 4‐2.) (6 pts)
