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PERT charts are useful in displaying nominal data or numerical data that splits nicely into different categories so you can quickly see comparative results and trends.

Information dashboards enable drill-down/drill-through operations that allow the users to view underlying data sources and obtain more detail.

Dashboards present visual displays of important information that are consolidated and arranged on a single screen.

When validating the assumptions of a regression, a metric assumes that the relationship between the response variable and the explanatory variables are linear.

Data accessibility means that the data are easily and readily obtainable.

Typical charts, graphs, and other visual elements used in visualization-based applications usually involve two dimensions.

In what decade did disjointed information systems begin to be integrated?

Successful BI is a tool for the information systems department, but is not exposed to the larger organization.

Interval data are variables that can be measured on interval scales.

A) We cycle through different stages of sleep at night. When you first go to bed, do you first enter non-rapid eye movement (NREM) or rapid eye movement (REM) sleep? (2 pt) B) In a typical night of sleep, does the deep stage of NREM sleep (N3) occur mostly in the early (first ~4 hours) or later (last ~4 hours) portion of the night? (2 pt) C) EEG recordings use scalp electrodes to non-invasively record electrical activity from large areas of the brain. Describe what a typical EEG recording from someone in deep N3 NREM sleep would look like. (2 pts) D) Explain what is happening in the brain to produce this type of EEG measurement during N3 NREM sleep. (2 pt) E) How does brain and muscle activity during REM sleep compare to wake? (hint: why is REM sleep also known as “paradoxical sleep”?). (2 pts)