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WGU C207 Data Driven Decision Making Exam & Study Guide 2024 Latest Update | Actual Exam Questions with Correct Detailed Answers | A+ Graded

COMP100 Computer Science — exam and revision material · Other

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Computer Science exam material, 27 pages. Originally published on StudyMerit.

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27
Academic year
2025/2026
Language
English

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WGU C207 DATA DRIVEN DECISION MAKING EXAM AND STUDY GUIDE LATEST 2024. which decision making model? - Answer- Davenport-Kim three-stage model In which stage of the Davenport-Kim model is problem recognition? - Answer- Framing the problem In which stage of the Davenport-Kim model is data collection? - Answer- Solving the problem What is a key reason we study statistics? - Answer- To make informed decisions Visually presenting the data assists in which stage of the Davenport-Kim model? - Answer- Communicating the results When does research fail to produce reliable results? - Answer- Poor research validity What are the two major issues surrounding research standards? - Answer- Best practices and ethics In order to be a statistically valid sample, the sample must be: - Answer -The appropriate size and random Not selecting a random sample is what type of bias? - Answer- Measurement Not selecting a right sized sample is what type of bias? - Answer- Measurement Research best practices eliminate... - Answer- Bias Outliers create this type of error - Answer- Out-of Range Unpredictable error - Answer- Random Error - No correlation Downloaded by Studymerit Dotcom (samuelkaruiki40@gmail.com) lOMoARcPSD|6879242

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Omission Error - Distorted results This error repeats itself - Answer- Systematic Error - Skewed results Observation points that are distant from other observations. - Answer- Outliers Note: Can be included or excluded in analysis (causes skewness) Types of Bias: Bias that occurs from not selecting a random sample - Answer- Measurement bias Types of Bias: Bias introduced because respondents believe it will be beneficial if selected. - Answer- Conscious bias (key word: benefit) Consistent and repeatable data - Answer- Reliable Resulting from accurate measurements - Answer- Valid data If a responder lies on their survey, this creates what type of bias? - Answer- Information Sorting your spreadsheet can expose these errors by moving them to the very top or the very bottom of the column - Answer- Omission or Out-of-Range An error that will fix itself over time - Answer- Random An error that will not fix itself. You must do something - Answer- Systematic Cleaning and organizing data - Answer- Data Management Are the following variables quantitative or qualitative? Personality type, social class, or communication style - Answer- Qualitative Downloaded by Studymerit Dotcom (samuelkaruiki40@gmail.com) lOMoARcPSD|6879242

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A study used when your conditions can't be controlled - Answer- Observational study Observes people going forward in time from the time of their entry into the study. - Answer- Cohort Study What are the three elements of an experimental study? - Answer- Unit, Treatment, Response Accurately measures what it is intended to measure - Answer- Valid data an experimental study prevents bias. - Answer- Blinding Neither the treatment allocator nor the participant knows in which group the participant is contributing. (Who is getting the real drug?) - Answer- Double blind study The participants are not told if they are in the treatment group or control group - Answer- Blind study Describes characteristics of a dataset. Mean, median, mode, variation, standard deviation, range.... - Answer- Descriptive analytics Uses data from t he past to predict the future - Answer- Predictive Uses experimental design and optimization to predict a future - Answer- Prescriptive If we move to six appointments an hour we can increase revenue 2%. Which form of analytics is this? - Answer- Prescriptive - We are taking a specific course of action Based on the last four quarters, we can predict $4,1 million in sales next quarter. Which form of analytics is this? - Answer- Predictive: We aren't taking any action Downloaded by Studymerit Dotcom (samuelkaruiki40@gmail.com) lOMoARcPSD|6879242

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