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.
liquor, spirits, booze, hard drink, hard liquor, John Barleycorn, strong drink(noun) an alcoholic beverage that is distilled rather than fermented. liquor(noun) a liquid substance that is a solution (or emulsion or suspension) used or obtained in an industrial process. waste liquors.