A random sample of 105 students of University A showed that 12 were in favour of a new grading system while another sample of 108 students of University B reveal that 18 were in favour of the new system. Do the results indicate a significant difference in the proportion of University A and University B students who favour the new grading systems? Use a = 0.01

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A: Given expression,

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A:

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A: Table Died from cancerDid not die from cancer TotalNever smoke cigars523116,265116788Former cigar…