Sample average is __________. a) unselected the upper and lower limits of a control chart b) unselected a key measure that repre
sents the central tendency of a group of samples used in conjunction with range (R) c) unselected a measure that refers to the presence or absence of a particular characteristic d) unselected a key measure that represents the variation of a specific sample group, used in conjunction with sample average (X) e) unselected
The correct answer is D) The unselected a key measure that represents the variation of a specific sample group, used in conjunction with sample average (X).
b) unselected a key measure that represents the central tendency of a group of samples used in conjunction with range.
Explanation:
The control chart is a graph used to study how a process changes with time. Data are plotted in time order. A control chart always has a central line for the average, an upper line for the upper control limit, and a lower line for the lower control limit.
Sample average is defined as a key measure that represents the central tendency of a group of samples used in conjunction with range. While Range is defined as a key measure that represents the variation of a specific sample group, used in conjunction with sample average
