Data management: 1. Select the machine/country/shift combination that showed the greatest difficulty. By For example, if your worst case scenario was machine 1 in Spain, your selection should be viewed as

follows: following way: Table #1 2. Then it is necessary to order the data in a way that represents the sequence in which they were taken. Shifts 1, 2 and 3 of each day must be consecutive. To achieve this it is necessary to add a column that identifies each of the days as presented in the table that follows. Table #2: 3. Sort the data by day and shift. Table #3