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Section 5.4
Calculations, Quality Control, and Statistics
Two freezing point osmometers are compared by running 40 paired patient samples one time on each instrument, and the following results are obtained:
There is no statistically significant difference in precision
Osmometer A demonstrates better precision that is statistically significant
Osmometer B demonstrates better precision that is statistically significant
Precision cannot be evaluated statistically when single measurements are made on samples
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