A Quality Analyst Wants to Construct a Sample Mean Chart

question 48

Multiple Choice

A Quality Analyst wants to construct a sample mean chart for controlling a packaging process.He knows from past experience that whenever this process is under control,package weight is normally distributed with a mean of twenty ounces and a standard deviation of two ounces.Each day last week,he randomly selected four packages and weighed each with the following results: If he uses upper and lower control limits of 23 and 17 ounces,what is his risk of concluding this process is in control when it is actually out of control (Type II error) ?

• A)0.0026
• B)0.0456
• C)0.3174
• D)0.6826
• E)0.9544

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Definitions:

Percentage

A mathematical concept that represents a fraction of 100, commonly used to compare and quantify proportions.

Organizational Commitment

Refers to the psychological attachment and loyalty employees feel towards their company, influencing their willingness to remain and engage in productive work.

Outsourcing

The practice of hiring external firms or individuals to perform tasks, handle operations or provide services that are either difficult to manage or are outside the company's core competencies.

Employee Morale Risks

Potential threats to the emotional well-being and satisfaction of employees, which can adversely affect productivity and organizational performance.