Dentists Without Painis a chain of 9 dental clinics located in Huston. Dentists Without Pain has realized that its clinics received a large number of clients who return to its clinics due to root canal complications. Dentists Without Pain collected data from its 9 clinics regarding the number of clients who return to the clinics due to root canal complication every month for 12 months as depicted in the table below. Show all calculations in detail.

	Clinics
Month	Clinic 1	Clinic 2	Clinic 3	Clinic 4	Clinic 5	Clinic 6	Clinic 7	Clinic 8	Clinic 9
January	26	3	10	25	37	36	19	27	33
February	3	4	38	4	8	32	28	5	10
March	3	17	28	31	17	26	18	9	27
April	29	28	10	23	22	17	14	1	25
May	8	10	34	12	25	12	11	12	1
June	22	17	31	32	4	16	6	11	22
July	27	17	37	14	10	26	17	8	18
August	11	9	21	12	26	31	6	5	32
September	30	34	35	3	17	5	36	5	25
October	11	1	10	2	33	30	17	33	2
November	14	3	20	23	10	36	22	11	27
December	29	12	2	3	26	38	7	4	27

1. Determine whether the process of providing root canal is in control or not.
2. Dentists Without Pain wants to assess whether its clinics meet the LSL = 0 and USL = 3 returns. Help Dentists Without Pain in this assessment.
3. Calculate the percentage of clinics that do not meet the specification limits.