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15 Cards in this Set
- Front
- Back
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What is a population?
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Complete collection of all individuals.
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What is a census?
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collection of data from every member of the population
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What is a sample?
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a subcollection of members from a population (i.e. a piece of the pie or a sampling of soup)
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What is statistical significance?
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Numbers from an experiment do support a conclusion or claim
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What is Practical Significance?
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The conclusion of a claim is either practical or impractical. (i.e. the number of pounds lost for a dieter can be low insignificant or high significant)
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What is a parameter?
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A numerical measurement of a population
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What is a statistic?
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A numerical measurement of a sample
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What is Numerical (Quantitative) data?
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Numbers representing counts of measurements.
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What is Categorical (Qualitative) data?
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consists of names or labels that are NOT numbers representing counts or measurements.
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What are NOIR?
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Nominal, Ordinal, Interval, & Ratio
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What is nominal level of measurements?
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is characterized by data that consists of names and labels or categories only. The data cannot be arranged in an order scheme(such as high or low).
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What is the Ordinal level of measurement?
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Categories are ordered but differences cannot be found or are meaningless.
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What is the Interval level of measurement?
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Differences are meaningful but there is no natural zero starting point and ratios are meaningless, (ex. body temperature in degrees F or C)
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What is the ratio level of measurement?
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There is a natural zero starting point and ratios are meaningful. (ex. distances)
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How do u tell the difference between an interval and a ratio?
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Is the quantity twice the other? Then the ratio rate applies
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