3.Table 2 shows the data on idle time per day in minutes for a worker in a machine position. In this idle time neither the worker nor the machine is working. Consider that the working day is 8 effective hours.

Table 2.

Daily idle times at the machine station

Day	Minutes	Day	Minutes	Day	Minutes	Day	Minutes	Day	Minutes
1	40	6	40	11	26	16	37	21	33
2	35	7	30	12	28	17	28	22	24
3	25	8	37	13	35	18	32	23	33
4	38	9	38	14	23	19	30	24	32
5	25	10	25	15	33	20	33	25	28

Construct the control chart for the idle time ratio for this study based on three standard deviations, showing the control limits and the idle time ratio data. It must show the calculations and graph the result of the analysis carried out for the information in Table 2.