A Production Process That Is in Control Has a Mean $\mu$

question 17

Essay

A production process that is in control has a mean ( $\mu$ ) of 80 and a standard deviation ( $\sigma$ ) of 10.
a.Determine the upper and the lower control limits for sample sizes of 25.
b.Five samples had means of 81, 84, 75, 83, and 79. Construct an X bar chart and explain whether or not the process is in control.

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Definitions:

Staffing Procedures

Processes and activities involved in identifying, attracting, evaluating, and hiring employees to fill job vacancies within an organization.

Objective Performance

Measurement based on fact, free from bias, and quantifiable in terms of outcome or achievement in a person's job role.

Subjective Measures

Methods of assessment based on personal opinions, interpretations, points of view, or judgments rather than objective data or criteria.

Objective

A specific result that a person or system aims to achieve within a timeframe and with available resources.