statistical study
data collection and experimental design
sampling techniques
random sample
levels of management
100
In an _______ _______ , a researcher does not influence the responses.
What is observational study
100
What is the use of a mathematical or physical model to reproduce the conditions of a situation or process?
What is simulation
100
What is a count or measure of an entire population?
What is census
100
What is a population?
What is the collection of all outcomes, responses, measurements, or counts that are of interest.
100
What are the four levels of measurement?
What is nominal, ordinal, interval, and ratio
200
What is it called when a researcher deliberately applies a treatment before observing the responses?
What is experiment
200
A ______ is an investigation of one or more characteristics of a population.
What is survey
200
A ______ is a count or measure of part of a population, and is more commonly used in _______ ______.
What is statistical studies
200
What is a sample?
What is a subset, or part, of a population.
200
What are the two types of data?
What is qualitative and quantitative
300
What isn’t applied to a control group ?
What is treatment
300
Three key elements of a well-designed experiment are _______, _________, ________.
What is control, randomization, and replication.
300
What is the difference between the results of a sample and those of the population?
What is sampling error
300
______ consists of information coming from observations, counts, measurements, or responses.
What is data
300
Which form of data consists of attributes, labels, or nonnumerical entries?
What is qualitative data
400
When a treatment is applied to part of a population?
What is treatment group
400
Experiments should be carefully designed and executed because..?
What is to produce meaningful unbiased results
400
A _____ ______ is one in which every member of the population has an equal chance of being selected.
What is random sample
400
Statistics is the science of collecting, organizing, analyzing, and interpreting data in order to..
What is make decisions
400
Which form of data consists of numerical measurements or counts?
What is quantitative data
500
What are subjects in the treatment and control groups called?
What is experimental units
500
What are the two methods of data collection?
What is simulation and survey
500
What is one way of collecting a simple random sample?
What is assign a different number to each member of the population and then use a random number table.
500
_____ is a numerical description of a population characteristic.
What is parameter
500
What are the two major branches of statistics?
What is Descriptive and inferential