10. Plasma bradykininogen levels are related to the body’s ability to resist inflammation.

In a 1968 study (Eilam, N., Johnson, P. K., Johnson, N. L., and Creger, W.,

“Bradykininogen levels in Hodgkin’s disease,” Cancer, 22, pp. 631–634), levels were measured in normal patients, in patients with active Hodgkin’s disease, and in patients with inactive Hodgkin’s disease. The following data (in micrograms of bradykininogen per milliliter of plasma) resulted.

Test, at the 5 percent level of significance, the hypothesis that the mean bradykininogen levels are the same for all three groups.

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Normal Active Hodgkin's Disease Inactive Hodgkin's Disease 5.37 3.96 5.37 5.80 3.04 10.60 4.70 5.28 5.02 5.70 3.40 14.30 3.40 4.10 9.90 8.60 3.61 4.27 7.48 6.16 5.75 5.77 3.22 5.03 7.15 7.48 5.74 6.49 3.87 7.85 4.09 4.27 6.82 5.94 4.05 7.90 6.38 2.40 8.36