Discuss the below:
Q.To compare the effectiveness of two treatments 1 and 2 for a particular disease. Patients were separated in 2 treatment groups. A patient in group 1 received treatment 1 and patients in group 2 received treatment 2. The results are given in the table below:
Treatment 1 Treatment 2
Success 170 180
Failure 30 10
(a) To answer the following question "Do treatments 1 and 2 have different effectiveness?", which test statistic should we use?
(b) A student, to whom the problem had been submitted, replied affirmatively to the question asked. Is the answer correct?