Which of the following subgroup sizes of an X and R chart would most likely be used for costly testing?
A) 6
B) 4
C) 5
D) 2

Question

Quizplus · Accepted Answer

For costly testing scenarios, smaller subgroup sizes are preferred to minimize the number of tests needed. A subgroup size of 2 is the smallest practical size that still allows for the calculation of range (R), making it the most likely choice for costly testing situations.

Which of the Following Subgroup Sizes of an X and R