Question

A single QC sample was analyzed for sodium concentration using the NOVA 5 and the c311...

A single QC sample was analyzed for sodium concentration using the NOVA 5 and the c311 analyzers, on 16 different days.

DAY---------------- NOVA 5 ----- c311

     1                      140             138

     2                      142             143

     3                      141             139

     4                      139             139

     5                      143             139

     6                      144             143

     7                      143             139

     8                      144             139

     9                      143             140

    10                     139             138

    11                     141             139

    12                     141             138

    13                     144             143

    14                     142             140

    15                     142             138

    16                     139             139

Is there a significant difference in the imprecision between NOVA 5 and the c311 analyzers?

- state a null hypothesis

- Assume that P<0.05 is statistically significant

What is the basis for your answer?

Math   Statistics-And-Probability   
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