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Question 148 / 323
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qualitycontrol-148
CUSUM CHARTS — The text describes Cusum charts as providing BETTER DETECTION of certain types of errors compared to Levey-Jenning charts. For which type of error is the Cusum chart SPECIFICALLY MORE EFFECTIVE?
A. Random errors such as outliers and single high values
B. SYSTEMATIC ERRORS — the Cusum technique generally provides BETTER determination of systematic errors than can be obtained by Levey-Jenning charts
C. Pre-analytical errors such as haemolysis
D. Post-analytical transcription errors
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