Exam 23: Applying Analytics to Big Data in Operations Management

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Which of the following Excel functions is NOT used to facilitate quick accuracy checks on the extreme values?

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C

Digital data can be collected from web sites, credit cards, point-of-sale records, social media, and operational environments.

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Explain neural networks and machine learning.

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Neural networks are computer systems, which, guided by statistical techniques, take large volumes of data and potential variables to form groupings of variables to identify complex paths and associations. Machine learning often builds on these paths and associations to make science fiction a reality by creating speech recognition and self-driving cars. As applied to analytics, machine learning provides a vehicle to sift through vast amounts of big data to provide insight.

One terabyte equals approximately one billion bytes.

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________ is an Excel tool to visually identify characteristics of data using formatting.

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Define three categories of analytics.

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Which of the following business analytics tools identifies and organizes data into groups with similar attributes?

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Data completeness refers to the degree to which all required data are present.

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What Excel formula should be used to count the number of empty cells in the following dataset? What Excel formula should be used to count the number of empty cells in the following dataset?

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Which of the following data visualization graphs uses arcs and nodes to provide a representation of flow through a system?

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Descriptive analytics characterizes and summarizes data to facilitate understanding.

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Perform a visual inspection on the following dataset. Identify the number of cells that need to be cleaned in Column D. Perform a visual inspection on the following dataset. Identify the number of cells that need to be cleaned in Column D.

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Which of the following business analytics tools is designed to explore very large datasets, looking for relevant patterns or relationships?

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In a ________, the highest and lowest values are highlighted.

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Which of the following data visualization graphs illustrates relative increases or decreases of categories in time or at points of comparison?

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The huge amount of production, consumer, and social media data collected in digital form is called ________.

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A ________ in Excel's Conditional Formatting changes the Fill color of every cell by using a gradation of two or three different colors. ________ means more extreme.

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Speech recognition and self-driving cars are applications of:

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________ is a tool to facilitate in-depth analysis of numeric data by applying filters and providing summary computations for categories and subcategories of the dataset.

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Data integrity requires that data be complete, consistent, and abundant.

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