SOLUTION: A health practitioner, in her research project, studied the relationship between the severity of a disease and blood group. The data collected are given in the following table. Can

Algebra ->  Probability-and-statistics -> SOLUTION: A health practitioner, in her research project, studied the relationship between the severity of a disease and blood group. The data collected are given in the following table. Can      Log On


   

Question 1202768: A health practitioner, in her research project, studied the relationship between the severity of a disease and blood group. The data collected are given in the following table. Can the severity of the condition and blood group be associated? The severity of the disease is classified by blood group in 3000 patients.

Condition Blood Groups
Total
O A B AB
Severe 102 80 20 18 220
Moderate 210 206 50 34 500
Mild 768 1054 250 208 2280
Total 1080 1340 320 260 3000
Test the hypothesis at  = 0.05
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