Data I

Context Definition: Example: The conditions and circumstances that are relevant to an event, fact, etc. Example: The weather for a particular day.

Data Definition A collection of facts from which conclusions may be drawn. Information that represent the qualitative or quantitative attributes of a variable or set of variables.

Inference Definition Example Process of drawing a conclusion by applying rules of statistics of sample characteristics to a population. Inferring a characteristic of a population from a sample. Example Drivers of red cars get the most speeding tickets.

Sample Definition Example Set of actual observations; subset of a population. Example The scores of everyone using ABC statistics book.

Statistic Definition Example Numerical values summarizing sample data. Those using ABC statistical text book have a mean score of 90.

Population Definition Example Complete set of events in which you are interested in. Example The scores of all students using any statistics book.

Parameter Definition Example Numerical values summarizing population data. Example Mean (average) score of those using any statistics book.

Test Your Knowledge Context Data Inference Sample Statistic Population Parameter Numerical values summarizing sample data. Numerical values summarizing population data. Complete set of events in which you are interested in. A collection of facts from which conclusions may be drawn. Set of actual observations; subset of a population. The conditions and circumstances that are relevant to an event, fact, etc. Process of drawing a conclusion by applying rules of statistics of sample characteristics to a population.

Test Your Knowledge - Answers Context-#6 Data-#4 Inference-#7 Sample-#5 Statistic-#1 Population-#3 Parameter-#2 Numerical values summarizing sample data. Numerical values summarizing population data. Complete set of events in which you are interested in. A collection of facts from which conclusions may be drawn. Set of actual observations; subset of a population. The conditions and circumstances that are relevant to an event, fact, etc. Process of drawing a conclusion by applying rules of statistics of sample characteristics to a population.