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.
(bÄvâ²Ér-Ä­j, bÄvâ²rÄ­j) n. 1. Any of various liquids for drinking: The menu lists several beverages, including water, soda, tea, and coffee. 2. A single serving of such a liquid: I ordered a beverage to go with my meal.