Question: Construct a 3-sigma X-bar chart with the following data. Explain each step and formula(s) used. Obs 1 Obs 2 Obs 3 Obs 4 Sample 1

Construct a 3-sigma X-bar chart with the following data. Explain each step and formula(s) used.

Obs 1 Obs 2 Obs 3 Obs 4
Sample 1 1.96% 2.10% 2.12% 2.02%
Sample 2 1.96% 2.03% 2.06% 2.02%
Sample 3 2.15% 2.06% 2.18% 2.00%
Sample 4 2.16% 2.07% 2.19% 2.03%
Sample 5 1.97% 2.05% 2.05% 2.09%

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