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Used to store data (textual and numerical) in rows and column called “cells”. Can manipulate this data using formulas
Requires that all selections are equally likely and all combonation of selections are equally likely.
Population be divided into groups. A random sample of groups is chosen and then a random sample of members of the chosen group is taken.
Facilitates the storage and retrieval of a wide range of data
Uses a scale – 1 to 4 for example
Using this sampling technique, requires that the population be divided into groups. These groups are called Strata.
A study that considers individuals over a long period of time.
Employs Checkmarks for selection
Data collected by you.
Can be raw data or cumulative information depicted on a table.
variables that can be measured numerically.
variables that cannot be described numerically.
This occurs when one type of respondent is overrepresented because groupings of different sizes are polled equally. – Overrepresentation
Can include a decimal, rational numbers –4/67 or 67
Asking someone to rate one particular thing.
A visual display use in brainstorming to show relationships → Flow Charts
Numbers which can continue forever. ex- Pi
data that can be described using whole numbers.
a word of phrase sought over the Internet
This occurs when surveys are not returned – thereby influencing the results.
factors in the sampling method that influence the result. – poor question design – interviewer tone and attitude
a random defined number which provides a measure of scale.
A measured value that can change.
Used when sampling a fixed percent of the population
Data that is collected over a period of time.
data that are only measurable with real numbers
can’t be a fraction of a number, a percentage, or have a decimal.
a study that considers individuals from different groups at the same time.
Respondent uses own words – allows for a wide variety of possibilities that are sometimes difficult to interpret.
the respondent must choose from a given list of responses. These responses are easily analyzed.
this occurs when the chosen sample does not accurately represent the population.
an unintended influence when gathering data from a sample.
information that is gathered about an entire population.
Data collected from other sources.
Population is organized in groups. Groups Examples: Schools, Communities, Companies. A random sample of the groups is chosen. All the members of the groups would be surveyed.
A statement or question that your project will answer or discuss.
a conclusion that can be made about a population, which is based on a sample.
Samples from which the selected elements cannot be reintroduced into the population.
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