1)In TQM stage1 part the line process is not balanced. The last person has to work harder than the others hence becoming a bottleneck.
2)If the cycle time is reduced the process should be redesigned hence the quality is maintained.
3)Waiting is defined wrong. (don't pass chairs ?too slowly??) as well as overProdctn and overProcssng
4)30chs in 90 sec because bottleneck eliminated at the end of the line
5)TQM Stage3: its 65s because all workers have to work harder now. THINK!