As a thumb rule a minimum of 50 randomly selected samples must be chosen for. process performance studies and a minimum of 20 subgroups (of sample size, preferably of at least 4 or 5) must be chosen for process capability studies.
: a usually iced drink of wine or distilled liquor mixed with flavoring ingredients. : something resembling or suggesting such a drink as being a mixture of often diverse elements or ingredients. : a mixture of agents usually in solution that is taken or used especially for medical treatment or diagnosis. : of, relating to, or set aside for cocktails. : designed for semiformal wear.
Cosmopolitan Cocktail. The Cosmopolitan is one of those cocktails that has had various incarnations through the ages - some of them, quite probably, independent of one another. During the 1990s, the familiar blend of cranberry, citrus and vodka was one of the most popular cocktails in New York and London.