#4. In a classic study of peptic ulcer and blood types involved data on 1655 patients and 10,000 controls. The data belo

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4 In A Classic Study Of Peptic Ulcer And Blood Types Involved Data On 1655 Patients And 10 000 Controls The Data Belo 1 (37.92 KiB) Viewed 68 times

#4. In a classic study of peptic ulcer and blood types involved data on 1655 patients and 10,000 controls. The data below gives the blood type distribution for healthy adults and ulcer patients. Blood Type Total Ulcer patient Controls o 911 4578 A 579 4219 B 124 890 AB 41 313 Total 1655 10,000 Carry out a Chi-Square test for this contingency table. State your hypotheses, p-value and conclusion. Test at 1% levels of significance. #5. Researchers wanted to compare the efficacy of two drugs (Phenytoin, Valproate) in the treatment of epileptic seizures. Patients were randomly assigned to receive either phenytoin or valproate for 12 months. Of 20 patients receiving Valproate, 6 were free of seizures, while 6 of the 17 receiving Phenytoin were also seizure free. Use a Chi-square test to compare the seizure free rates for each of the two drugs. State your hypotheses, p-value and conclusion. Test at 10% levels of significance. (Hint: Set up the table). Are the two drugs equally effective in controlling seizures? Or is being Seizure free related to which drug was used?