1. The data on measurement system is given below:

Part No.	Inspector 1	Inspector 2	Inspector 3
	Trial 1	Trial 2	Trial 3	Trial 1	Trial 2	Trial 3	Trial 1	Trial 2	Trial 3
1	38	39	37	34	33	34	41	40	40
2	35	35	35	41	42	43	44	44	42
3	39	38	40	39	38	39	36	38	36
4	31	29	33	29	31	27	45	47	47
5	32	32	30	26	24	24	45	47	47
6	39	41	41	36	34	38	39	39	39
7	43	45	42	44	42	42	27	28	25
8	36	37	36	34	35	32	43	43	45
9	40	38	41	44	46	44	45	44	46
10	29	27	28	43	41	44	35	35	34

Find gauge capability using Design of Experiments

1. P/T Ratio with USL=55; LSL=20
2. Variability w.r.t. repeatability
3. Variability w.r.t. reproducibility
4. Find the variance of Part