# Control Chart - Point Information Tab

Database Error - AddRecord

This tab, selected from the Control Chart Information Form, outputs information about each point. The following grid will be displayed.

### Point Number

The sample number is displayed in this column.

### Sample Size

This sample size, "n" is displayed in this column.

### Location Statistic

The location statistic for each sample is displayed in this column. This will be displayed in green unless a viololation of the Control Tests are Found and then it will be displayed in yellow.

### Location Limits and Centerline

The Control Limits and Centerline for the Location statistics are displayed in these columns.

### Control Test Codes

The

__Control Tests__Results for each point is displayed here. The following codes are used.**O**: Point outside the limits**R**: Run (8 points above or below the centerline)**T**: Trend (6 points increasing/decreasing)**L**: Lack of Variability (15 within one standard error)**E**: Excess Variability (8 outside one standard errors)**A**: Alternating Values (14 points alternating up/down)**M**: Excessive Moving Range (Outside limits on MR chart)**1**: Zone 1 Rule (4 out of 5 outside one standard error)**2**: Zone 2 Rule (2 out of 3 outside two standard errors)

### Dispersion Statistic

The Dispersion statistic for each sample is displayed in this column. This will be displayed in green unless a viololation of the

__Control Tests__are Found and then it will be displayed in yellow.### Dispersion Limits and Centerline

The Control Limits and Centerline for the Dispersion statistics are displayed in these columns.

### Control Test Codes

The

__Control Tests__Results for each point is displayed here. The following codes are used.**O**: Point outside the limits**R**: Run (8 points above or below the centerline)**T**: Trend (6 points increasing/decreasing)**L**: Lack of Variability (15 within one standard error)**E**: Excess Variability (8 outside one standard errors)**A**: Alternating Values (14 points alternating up/down)**M**: Excessive Moving Range (Outside limits on MR chart)**1**: Zone 1 Rule (4 out of 5 outside one standard error)**2**: Zone 2 Rule (2 out of 3 outside two standard errors)

### Sigma Estimate

The standard deviation estimate for each set will be displayed in this column.