If = 2.0144, = .0972,and 25 subgroups of size 5. Find the UCL and the LCL for the chart.
A)(1.999 2.029)
B)(1.958 2.071)
C)(1.917 2.112)
D)(1.437 2.591)

Question

If  = 2.0144,  = .0972,and 25 subgroups of size 5. Find the UCL and the LCL for the  chart.
A)(1.999 2.029) 
B)(1.958 2.071) 
C)(1.917 2.112) 
D)(1.437 2.591)

Quizplus · Accepted Answer

To calculate the UCL and LCL for the 11eaa0cf_05f4_6b30_9cb2_cd6052e2c62f_TB1737_11 chart, we need to use the formula:

UCL = 11eaa0cf_05f4_441e_9cb2_c1918c76a471_TB1737_11 + 3*sqrt(11eaa0cf_05f4_441f_9cb2_696d0314e2b2_TB1737_11)
LCL = 11eaa0cf_05f4_441e_9cb2_c1918c76a471_TB1737_11 - 3*sqrt(11eaa0cf_05f4_441f_9cb2_696d0314e2b2_TB1737_11)

Substituting the given values in the formula, we get:

UCL = 2.0144 + 3*sqrt(0.0972) = 2.071
LCL = 2.0144 - 3*sqrt(0.0972) = 1.958

Therefore, the best choice is B, which gives the correct values for UCL and LCL.

If = 20144, =