Critical Thinking Questions Case 6-2 Dan Is Manipulating Data in a Table

question 43

Multiple Choice

Critical Thinking Questions Case 6-2 Dan is manipulating data in a table containing records on computer equipment purchases for the past year. Each record in the table contains the date purchased, the type of computer equipment, the vendor's name, the cost of the equipment, and the department in which the equipment is installed. The records were originally entered in order by month of purchase. Dan sends you an e-mail asking how he can rearrange the table's records to see all the purchases from each vendor in date order within each department. He also wants to know a quick way to get the data back into its original order, whenever necessary. To rearrange the data, you suggest that Dan create a custom sort by setting the ____.

• A) purchase date field as the major sort key, the vendor field as the intermediate sort key, and the department field as the minor sort key
• B) vendor field as the major sort key, the department field as the intermediate sort key, and the purchase date field as the minor sort key
• C) purchase date field as the major sort key, the department field as the intermediate sort key, and the vendor as the minor sort key
• D) department field as the major sort key, the vendor field as the intermediate sort key, and the purchase date field as the minor sort key

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Definitions:

Indicator Variables

Variables used in statistical models to label subgroups, often taking values 0 or 1 to indicate the absence or presence of some categorical effect.

Categorical Variable

A variable that represents categories or groups with qualitative differences, such as gender, nationality, or brand preference.

Regression Model

A statistical technique used to model and analyze the relationships between variables and how one variable's change is associated with the change of another.

Technical Expertise

Having specialized skills and knowledge in a particular field, especially in relation to complex systems or technology.