Our latest projects

N95 Mask

KN95 Mask

Disposable Mask

Medical Masks

Cusum Charts (Tabular) - statvision

2. The Cusum Charts (V-Mask) procedure, which plots a single two-sided cumulative sum with a leading “V-Mask” to determine when the process goes out-of-control. The tabular or algorithmic cusum described here is often preferred since it more closely resembles other control charts. In addition, a “headstart” feature may be added to

Cusum Charts (Tabular) - statvision

2. The Cusum Charts (V-Mask) procedure, which plots a single two-sided cumulative sum with a leading “V-Mask” to determine when the process goes out-of-control. The tabular or algorithmic cusum described here is often preferred since it more closely resembles other control charts. In addition, a “headstart” feature may be added to