Random samples of four items are selected from a manufacturing process at regular intervals and a certain quality characteristic is measured. After 25 samples,ΣX = 15,350 and ΣR = 411.4 The measurement of quality is based on ________.
A)an attribute
B)a variable
C)a scale
D)a chart

Question

Quizplus · Accepted Answer

The use of R (range) as a measure indicates that the quality characteristic being measured is a variable.

Random Samples of Four Items Are Selected from a Manufacturing