The rework percentage of a large machine having various machine groups shop is 30 per cent. On a particular machine group (turning machines) out of 400 jobs produced, 100 jobs are reworked. Does the...

The rework percentage of a large machine having various machine groups shop is 30 per cent. On a particular machine group (turning machines) out of 400 jobs produced, 100 jobs are reworked. Does the rework proportion on turning differ significantly from that of the machine shop?