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

question 34

Short Answer

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 39 orders was selected, the average number of days was 6.65 with a population standard deviation of 1.5 days. Calculate the appropriate test statistic to test the hypotheses.

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Definitions:

Confederates

Individuals who are part of a study's design but pretend to be participants, aiding in creating specific conditions for the actual participants' reactions.

Bystanders

People who are at a scene or occurrence yet do not participate.

Crisis Situation

A significant and often sudden event or condition that requires immediate attention and action to protect life, property, or the environment.

Pressure

The psychological experience produced by urgent demands or expectations for a person’s behavior that come from an outside source.