Which of the Following Statements Are Not True?
A) a Particular

Multiple Choice

Which of the following statements are not true?

A) A particular V-mask is determined by specifying the "lead distance" d and "half angle" $\theta$
, or equivalently, by specifying d and the length h of the vertical line segment from 0 to the lower (or to the upper) arm of the mask.
B) One method for deciding which V-mask to use involves specifying the size of a shift in the process mean that is of particular concern to an investigator, then the parameters of the mask are chosen to give desired values of $\alpha \text { and } \beta$
The false-alarm probability and the probability of not detecting the specified shift, respectively.
C) One method for deciding which V-mask to use involves selecting the mask that yields specified values of the ARL (average run length) both for an in-control process and for a process in which the mean has shifted by a designated amount.
D) All of the above statements are true.
E) None of the above statements are true.