TABLE 17-8 Recently, a University Switched to a New Type of Computer-Based

question 71

Short Answer

TABLE 17-8
Recently, a university switched to a new type of computer-based registration. The registrar is concerned with the amount of time students are spending on the computer registering under the new system. She decides to randomly select 8 students on each of the 12 days of the registration and determine the time each spends on the computer registering. The range, mean, and standard deviation of the times required to register are in the table that follows.

-Referring to Table 17-8, an R chart is to be constructed for the time required to register. One way to create the upper control limit involves multiplying the average of the sample ranges by D₄. For this data set, the value of D₄ is ________.

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Definitions:

DSM

A publication by the American Psychiatric Association that provides a common language and standard criteria for the classification of mental disorders.

Diagnostic Categories

Diagnostic categories are classifications used in the medical and psychological fields to systematically identify and describe specific disorders or diseases based on standardized criteria.

Descriptive Criteria

Guidelines or characteristics used to describe or classify something in detail.

Psychological Disorders

Mental disorders characterized by patterns of behavior or thought that are significantly distressing or disabling and not considered culturally normative.