Applied decision modeling concepts


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Question 1 of 25 Cross-sectional data are data: A. collected over time B. that are collected over a single period of time C. consisting of a single variable D. consisting of two or more variables Question 2 of 25 Ordinal data are: A. sorted into categories according to specified characteristics B. ordered or ranked according to some relationship to one another C. ordered, have a specified measure of a distance between observations but have no nature zero D. data which have a natural zero Question 3 of 25 4. Document Preview: Question 1 of 25 Cross-sectional data are data: A. collected over time B. that are collected over a single period of time C. consisting of a single variable D. consisting of two or more variables Question 2 of 25 Ordinal data are: A. sorted into categories according to specified characteristics B. ordered or ranked according to some relationship to one another C. ordered, have a specified measure of a distance between observations but have no nature zero D. data which have a natural zero Question 3 of 25 4.0 Points The process of collection, organization, and description of data is commonly called: A. descriptive statistics B. statistical inference C. predictive statistics D. operational statistics Question 4 of 25 __________ is a measure of a linear relationship between two variables, X and Y. A. correlation B. range C. standard deviation D. median Question 5 of 25 The statistical measures that characterize dispersion are: A. Range, variance, standard deviation B. Mean, median, mode C. Range, mean, standard deviation D. Correlation, frequencies, standard deviation Question 9 of 25 A confidence interval (CI) is a range of scores with specific boundaries that should contain the ______ mean. A. sample B. population C. standard error D. none of the above Question 11 of 25 The hypothesis predicting that differences exist between the groups being compared is to the hypothesis predicting that no differences exist between the groups being compared as _____ hypothesis is to _____ hypothesis. A. null; alternative B. alternative; null C. one-tailed; two-tailed D. two-tailed; one tailed Question 12 of 25 Directional hypothesis is to non-directional hypothesis as _____ hypothesis is to _____ hypothesis. A. null; alternative B. alternative; null C. one-tailed; two-tailed D. two-tailed; one-tailed Question 13 of 25 A researcher was interested in the emotional effects of music on exam performance…. Attachments: questions.docx

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