Table 2 Arrival time and inter arrival time of customers in store.

From: Symmetry of gamma distribution data about the mean after processing with EWMA function

Arrival no

Arrival time

Inter-arrival time (min)

1

9:09 a.m.

9.6

2

9:14 a.m.

5.1

3

9:17 a.m.

2.5

4

9:20 a.m.

3.5

5

9:26 a.m.

5.9

6

9:28 a.m.

2.4

7

9:33 a.m.

5.4

8

9:36 a.m.

2.7

9

9:48 a.m.

12.4

10

9:59 a.m.

11.3

11

10:09 a.m.

9.9

12

10:17 a.m.

8.4

13

10:23 a.m.

5.8

14

10:25 a.m.

1.8

15

10:35 a.m.

10.4

16

10:49 a.m.

14.0

17

10:55 a.m.

6.0

18

10:59 a.m.

4.4

19

11:10 a.m.

11.2

20

11:22 a.m.

12.0