An EWMA control chart uses λ = 0.5. What is the value of L such that the control limits of this EWMA control chart in the steady state have the same width with a 3σ X_bar control chart?

5.199

Step-by-step explanation:

From the  information provided;

We know that λ = 0.5.

However, the control limits for a steady-state EMWA control chart is:

where;

Given that the data is chosen from an individual sample;

Then; we can express the width as:

L = 5.199

it would to have a graph or something ! but i had this question so its false

step-by-step explanation:

correct answer:

a + bi