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In a random sample of 400 students of the University of Teaching Department, it was found that 300 students failed in the examination. In another

In a random sample of 400 students of the University of Teaching Department, it was found that 300 students failed in the examination. In another sample of 500 students of the affiliated colleges, the number of failures in the same examination was found to be 300. Find out whether the proportion of failures in the university teaching departments significantly greater than the proportion of failures in the university teaching departments and affiliated colleges taken together.


 

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