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