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qualitycontrol-284
LEVEY-JENNING CHART — The text describes what happens in a NORMAL (GOOD CONTROL) LEVEY-JENNING CHART. According to the L-J chart interpretation, when values are observed BETWEEN FIRST STANDARD DEVIATION RANGE, what does this indicate?
A. Values between ±1SD indicate the method needs immediate recalibration
B. VALUES BETWEEN ±1SD RANGE INDICATE GOOD CONTROL OVER THE SPECIFIC METHODOLOGY — the method is performing within expected normal variation
C. Values between ±1SD are unacceptable and must be investigated
D. Values between ±1SD indicate excessive scatter in the analytical system
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