When the type I error is specified, which of these is correct expression for the UCL of the modified control charts?
Posted: Thu Jul 14, 2022 1:58 pm
a) \(UCL=USL-\left(Z_δ+\frac{Z_α}{\sqrt{n}}\right) \sigma \)
b) \(UCL=USL-\left(Z_δ-\frac{Z_α}{\sqrt{n}}\right) \sigma \)
c) \(UCL=USL+\left(Z_δ+\frac{Z_α}{\sqrt{n}}\right) \sigma \)
d) \(UCL=USL+\left(Z_δ-\frac{Z_α}{\sqrt{n}}\right) \sigma \)
b) \(UCL=USL-\left(Z_δ-\frac{Z_α}{\sqrt{n}}\right) \sigma \)
c) \(UCL=USL+\left(Z_δ+\frac{Z_α}{\sqrt{n}}\right) \sigma \)
d) \(UCL=USL+\left(Z_δ-\frac{Z_α}{\sqrt{n}}\right) \sigma \)