A Mail-Order Business Prides Itself in Its Ability to Fill

question 115

Multiple Choice

A mail-order business prides itself in its ability to fill customers' orders in less than six calendar days, on average. Periodically, the operations manager selects a random sample of customer orders and determines the number of days required to fill the orders. On one occasion when a sample of 30 orders was selected, the average number of days was 6.65 with a sample standard deviation of 1.5 days. Assume the time in which an order is filled is normally distributed.

-Calculate the appropriate test statistic to test the hypotheses.

• A)2.37
• B)16.90
• C)0.65
• D)-2.37
• E)3.31

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Definitions:

Medical Instrument

Tools or devices used in the practice of medicine for diagnosis, treatment, or surgery.

Known Standards

Established benchmarks or criteria widely accepted within a particular industry or profession.

Quality Assurance

Processes and methodologies employed to ensure products or services meet specified requirements and standards.

Patient Care

The services and interventions provided by health care professionals to patients to improve or maintain their health status.