Multiple Choice
The control values for both controls for the prothrombin test were ranging between the mean and ±1 SD for the first 19 days of use.Starting on day 20,the values for both were consistently between +1 and +2 SDs.This is an example of a
A) shift.
B) trend.
C) random error.
D) predictable error.
Correct Answer:
Verified
Correct Answer:
Verified
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