Busi 230 Test Exam.
Population - CORRECT ANSWER collection of al outcomes, responses, measurements, or counts that are
of interest
Sample - CORRECT ANSWER a subset, or part of a population
Parameter - CORRECT ANSWER numerical description of a population
Statistic - CORRECT ANSWER numerical description of a sample
Census - CORRECT ANSWER counting every single member of the population
qualitative - CORRECT ANSWER nonnumerical entries, categories, attributes
quantitative - CORRECT ANSWER numerical measurements
Nominal Level - CORRECT ANSWER names, labels, colors, categories - no mathematical computations
can be made at this level - social security numbers (a name)
Ordinal Level - CORRECT ANSWER Data at this level can be arranged in order/ranked, but differences
between data entries are not meaningful. grades, positions
Intervel Level - CORRECT ANSWER Measurements can be ordered, and meaningful differences between
data entries can be calculated. (hard zero) years, temperature, year of birth
, Ratio Level - CORRECT ANSWER Inherent Zero. age, prices, percentages, time
Observational Study - CORRECT ANSWER A researcher observes characteristics of a part of a population
but does not change existing conditions
Experimentation - CORRECT ANSWER A treatment is applied to part of a population and responses are
observed. Control Group vs. Treatment Group
Simulation - CORRECT ANSWER A mathematical or physical model to reproduce (dangerous or
impractical) conditions of a situation or process
Survey - CORRECT ANSWER An investigation of one or more characteristics of a population
Randomization - CORRECT ANSWER Process of randomly assigning subjects to different treatment
groups
Random Sample - CORRECT ANSWER One in which every member of the population has an equal chance
of being selected
A Simple Random Sample - CORRECT ANSWER A sample in which every possible sample of the same size
has the same chance of being selected
Stratified Sample - CORRECT ANSWER Members of a population are divided into tow or more subsets
(strata) that share a similar characteristic - such as age, gender, ethnicity. A sample is then randomly
selected from each of the strata.
Cluster Sample - CORRECT ANSWER When the population falls into naturally occurring subgroups, each
having similar characteristics. To select a cluster sample, divide the population into clusters and select all
of the numbers in one or more (not all) of the clusters.
Population - CORRECT ANSWER collection of al outcomes, responses, measurements, or counts that are
of interest
Sample - CORRECT ANSWER a subset, or part of a population
Parameter - CORRECT ANSWER numerical description of a population
Statistic - CORRECT ANSWER numerical description of a sample
Census - CORRECT ANSWER counting every single member of the population
qualitative - CORRECT ANSWER nonnumerical entries, categories, attributes
quantitative - CORRECT ANSWER numerical measurements
Nominal Level - CORRECT ANSWER names, labels, colors, categories - no mathematical computations
can be made at this level - social security numbers (a name)
Ordinal Level - CORRECT ANSWER Data at this level can be arranged in order/ranked, but differences
between data entries are not meaningful. grades, positions
Intervel Level - CORRECT ANSWER Measurements can be ordered, and meaningful differences between
data entries can be calculated. (hard zero) years, temperature, year of birth
, Ratio Level - CORRECT ANSWER Inherent Zero. age, prices, percentages, time
Observational Study - CORRECT ANSWER A researcher observes characteristics of a part of a population
but does not change existing conditions
Experimentation - CORRECT ANSWER A treatment is applied to part of a population and responses are
observed. Control Group vs. Treatment Group
Simulation - CORRECT ANSWER A mathematical or physical model to reproduce (dangerous or
impractical) conditions of a situation or process
Survey - CORRECT ANSWER An investigation of one or more characteristics of a population
Randomization - CORRECT ANSWER Process of randomly assigning subjects to different treatment
groups
Random Sample - CORRECT ANSWER One in which every member of the population has an equal chance
of being selected
A Simple Random Sample - CORRECT ANSWER A sample in which every possible sample of the same size
has the same chance of being selected
Stratified Sample - CORRECT ANSWER Members of a population are divided into tow or more subsets
(strata) that share a similar characteristic - such as age, gender, ethnicity. A sample is then randomly
selected from each of the strata.
Cluster Sample - CORRECT ANSWER When the population falls into naturally occurring subgroups, each
having similar characteristics. To select a cluster sample, divide the population into clusters and select all
of the numbers in one or more (not all) of the clusters.
