On Performance of Two-Parameter Gompertz-Based Control Charts

Table 2

Coverage probabilities.

Sample size	Skewness correction	Gompertz Shewhart	Gompertz skewness correction	Gompertz exact
2	1.0	0.989	0.989	0.998
3	1.0	0.918	0.917	0.978
4	1.0	0.947	0.947	0.997
5	1.0	0.875	0.875	0.988
7	1.0	0.825	0.826	0.991
10	1.0	0.695	0.695	0.976