Wpc 300 Quizzes Together Study Guide Graded A+

In an ETL process, data is loaded into a final target database such as: Operational dashboard Public database Social media database Data warehouse {Ans: Data warehouse}Which of the following is an important task of a database management system? Helps collect data from vendors Helps create rules for data analysis Provides support such as performing maintenance and routine backups. Provides unauthorized access to data when authentication fails {Ans: Provides support such as performing maintenance and routine backups.}What are the four types of data analytical method? Descriptive, logical, predictive and prescriptive Descriptive, explanatory, predictive and prescriptive Critical, analytical, predictive and explanatory Descriptive, analytical, predictive and prescriptive {Ans: Descriptive, explanatory, predictive and prescriptive}The unexplained variance in the regression analysis is also known as: Regression variance Residual variance Total variance Predicted variance {Ans: Residual variance}When you keep eating the food you don't like precisely because you already bought the food, you are committing _______________ Endowment effect bias Sunk-cost fallacy Zero risk bias Availability heuristics bias {Ans: Sunk-cost fallacy}In inferential statistics, a _____________ is used to infer about a ______________. sample, population Population, significance Population, sample Sample, significance {Ans: sample, population}