• Use as many decimal digits as possible (not less than 5 decimal digits).

• Show me in one sample how you calculated each value, and copy and paste all tables and figures from excel.

question 1:

A sheet glass manufacturer produces standard 6mm thickness panes for double glazing windows. Following are thickness dimensions taken from samples during the production process:

Sample	x1	x2	x3	x4	x5
1	6.45	6.12	6.03	5.89	5.92
2	5.76	6.23	6.05	6.32	5.89
3	6.11	6.15	5.93	6.21	5.96
4	5.74	6.03	6.02	6.2	6.04
5	6.35	6.07	5.88	5.93	6.06

Use the appropriate control charts to determine if the process is in control.