1 answer

For the following precision data, calculate the mean, SD, and CV for each of the two...

Question:

For the following precision data, calculate the mean, SD,
and CV for each of the two control solutions A and B.

These control solutions were chosen because their con-
centrations were close to medical decision levels (XC) for

glucose: 120 mg/dL for control solution A and 300 mg/dL
for control solution B.

Control solution A was analyzed daily, and the follow-
ing values were obtained:

118, 120, 121, 119, 125, 118, 122, 116, 124, 123, 117,
117, 121, 120, 120, 119, 121, 123, 120, and 122 mg/dL.
Control solution B was analyzed daily and gave the
following results:
295, 308, 296, 298, 304, 294, 308, 310, 296, 300, 295,
303, 305, 300, 308, 297, 297, 305, 292, and 300 mg/dL.
Does the precision exceed the total allowable error
defined by the CLIA?


Answers

Mean calentation Control solution A Caro mean value = (118+ 120+121+ng+125+ 118+ 122+116 +124t 123 +177 +117+121+120+120 +119Now Let us construct the table average 120.3 300.55 Noob Observeel Number of observations Observed values of control-A noin 1Co-efficient of variation calculation (ev) SD = ev al mean x 10 o) Control A solation 112.2 eva (121 22 x 100)% = 0.0326 x CV

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