Which of this is a situation when x bar and s charts should be utilized instead of x bar and R charts?
Posted: Thu Jul 14, 2022 1:47 pm
a) When sample size is constant
b) When sample standard deviation is less than 1
c) When sample range is more than 1
d) When sample size is variable
b) When sample standard deviation is less than 1
c) When sample range is more than 1
d) When sample size is variable