Sample Means and Ranges Were Obtained for Five Samples of 10

question 11

Multiple Choice

Sample means and ranges were obtained for five samples of 10 units per sample from a production process.Assume the process was considered to be in control during the period these samples were collected.The results are as follows: 1 10.58 .23
2 9) 97 .25
3 9) 99 .21
4 10.23 .28
5 10.23 .28
LCL for the three sigma X chart for the process is approximately (for a sample size of 10, A2 = 0.31) :

• A)10.12.
• B)10.05.
• C)10.94.
• D)9.44.
• E)9.75.

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Definitions:

Psychoanalysis

A therapeutic technique and theory of psychology developed by Sigmund Freud, focusing on unconscious processes and resolving internal conflicts.

Sigmund Freud

A neurologist from Austria who initiated the field of psychoanalysis, which employs conversation between a psychoanalyst and a patient as a therapy for mental disorders.

Drug Therapy

The treatment of disease by the administration of drugs, as distinguished from surgery, radiation, etc., often specifically referring to the use of medication to treat mental health conditions.

ECT

Electroconvulsive Therapy is a psychiatric treatment in which seizures are electrically induced in patients to provide relief from severe mental disorders.