A logistics company supplies electronic parts to various retail stores daily. The company uses late deliveries as a metric to track its supply chain performance. Any order that is not delivered on the same day is considered late. The numbers of late deliveries for each of the past 20 days are as follows: 

Sample Late Deliveries per Day Sample Late Deliveries per Day

1) 7                                                                  11) 3

2) 12                                                                12) 5

3) 5                                                                  13) 3

4) 11                                                                14) 13

5) 6                                                                  15) 8

6) 8                                                                  16) 7

7) 5                                                                  17) 4

8) 3                                                                 18) 10

9) 4                                                                 19) 6

10) 7                                                               20) 9

Construct a c-chart for this process using 3σ control limits and determine whether the process was ever out of control. Round your answers to two decimal places.

The upper control limit for the process is late deliveries per day.

The lower control limit for the process is late deliveries per day.

Is the process in control?

The process is in control. The process is not in control.