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Design of statistical study
Data Collection
Experimental design
sampling techniques
Data sets
100
observational study
__________, a researcher does not influence the responses.
100
Simulation
A ____ is the use of a mathematical or physical model to reproduce the conditions of a situation or process.
100
control, randomization, replication
What are the 3 key elements of an experiment?
100
census
A _____ is a count or measure of an entire population.
100
a subset, or part, of a population
What is a sample?
200
experiment
____________, a researcher deliberately applies a treatment before observing the responses
200
Survey
A ______ is an investigation of one or more characteristics of a population.
200
randomization
What is the process of randomly assigning subjects to different treatment groups?
200
Sampling
A ____ is a count or measure of a part of a population.
200
a numerical description of a population characteristics
What is a parameter?
300
treatment
__________, is applied to part of a population
300
people
Most often, surveys are carried out on ____ by asking them questions.
300
groups of subjects with similar characteristics
What are blocks?
300
Sampling occur
Even with the best methods of sampling, a _____ may occur.
300
statistic
A ____ is a numeral description of a sample characteristic.
400
no treatment is applied
What is a control group?
400
computers
collecting data often involves using the use of
400
where subjects are paired up according to a similarity
What is a matched-pairs design?
400
Random sample
A ____ is one in which every member of the population has an equal chance of being selected.
400
population.
A ____ is the collection of all outcomes, responses, measurements, or counts that are of interest.
500
a harmless or fake treatment
What is placebo?
500
interview, internet, phone, or mail.
The most common types of surveys are done by....
500
to improve the validity
why is replication required?
500
simple random sample
A ____ is a sample in which every possible sample of the same size has the same chance of being selected.
500
data
____ consists of information coming from observations, counts, measurements, or responses.