Question: You are using a control chart for quality control purposes. Which of the following statements are true regarding control charts? (Select three.) A. Common causes

You are using a control chart for quality control purposes. Which of the following statements are true regarding control charts? (Select three.)

A. Common causes of variance include random, known, or predictable, and variances that are always present in the process and common causes of variance are plotted on a control chart.

B. Control charts measure variances to determine whether process variances are in control or out of control.

C. Common causes of variance that are outside of the acceptable range may require the project manager to approve changes to or reorganization of the process.

D. Control charts are used in conjunction with the rule of seven.

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