STAT 217-02: Midterm 1 ACTUAL UPDATED Questions and CORRECT Answers
Terms in this set (47)
Statistics The science of designing studies, gathering data, and then classifying,
summarizing, interpreting, and presenting these data to explain and support the
decisions that are reached.
Population The complete collection of measurements, objects, or individuals under study.
Sample A portion or subset taken from a population.
Parameter A number that describes a population characteristic.
Statistic A number that describes a sample characteristic.
Census An official count or survey of a population, typically recording various details of
individuals.
Descriptive Statistics Includes the procedures for collecting, classifying, summarizing, and presenting
data.
Statistical Inference The process of arriving at a conclusion about a population parameter (which
usually an unknown quantity) based on information obtained sample statistic (a
known value).
Experiment The process of subjecting experimental units to treatments and observing their
response.
Experimental Units A set of objects that are initially equivalent, with each object then subjected to
one of several experimental treatments.
Subjects Experimental units that are people.
Treatments Aspect(s) used to manipulate the experimental units and/or create different
conditions.
Levels Different values for each factor in an experiment.
Response The result of an experiment that is observed and compared to across various
treatments.
Factors Explanatory variable(s) manipulated by the experimenter.
Observational Study A study that attempts to understand cause-and-effect relationships but is unable
to control how subjects are assigned to groups and/or which treatments each
group receives.
Terms in this set (47)
Statistics The science of designing studies, gathering data, and then classifying,
summarizing, interpreting, and presenting these data to explain and support the
decisions that are reached.
Population The complete collection of measurements, objects, or individuals under study.
Sample A portion or subset taken from a population.
Parameter A number that describes a population characteristic.
Statistic A number that describes a sample characteristic.
Census An official count or survey of a population, typically recording various details of
individuals.
Descriptive Statistics Includes the procedures for collecting, classifying, summarizing, and presenting
data.
Statistical Inference The process of arriving at a conclusion about a population parameter (which
usually an unknown quantity) based on information obtained sample statistic (a
known value).
Experiment The process of subjecting experimental units to treatments and observing their
response.
Experimental Units A set of objects that are initially equivalent, with each object then subjected to
one of several experimental treatments.
Subjects Experimental units that are people.
Treatments Aspect(s) used to manipulate the experimental units and/or create different
conditions.
Levels Different values for each factor in an experiment.
Response The result of an experiment that is observed and compared to across various
treatments.
Factors Explanatory variable(s) manipulated by the experimenter.
Observational Study A study that attempts to understand cause-and-effect relationships but is unable
to control how subjects are assigned to groups and/or which treatments each
group receives.
