Problem
In an assay of heparin, a standard preparation is compared with a test preparation by observing the log clotting times (y, in seconds) of blood containing different doses of heparin (x is the log dose; Table E4.32). Replicate readings are made at each dose level. Calculate separately for the standard preparation and the test preparation Pearson's correlation coefficient between the log clotting times and log dose.
|
Log clotting times
|
Log dose
|
|
Standard
|
Test
|
|
1.806
|
1.799
|
0.72
|
|
1.851
|
1.826
|
0.87
|
|
1.954
|
1.898
|
1.02
|
|
2.124
|
1.973
|
1.17
|
|
2.262
|
2.140
|
1.32
|
The response should include a reference list. Double-space, using Times New Roman 12 pnt font, one-inch margins, and APA style of writing and citations.