Ain Shams University Faculty of Engineering MDP 690 Design and Production Eng. Dept. M.Sc. and PhD Jan 2022 Attempt All Questions The exam is OPEN BOOK Question One During a certain period, the number of breakdowns of 4 machines occurring in each of the 3 shifts was recorded which is summarized in the following two-way table. Shift M/C-A M/C-B M/C-C M/C-D Total I 10 12 13 41 II 10 12 19 21 62 III 13 10 13 18 54 Total 33 28 44 52 157 Examine whether the same percentage of breakdown occurs on each machine during each shift