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Test Bank for Essential of Statistics: Chapter 1 (7th edition by Mario F. Triola)
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Test Bank for Essential of Statistics: Chapter 1 (7th edition by Mario F. Triola)
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Test Bank for Essential of Statistics:Chapter 1 (7th edition by Mario F. Triola)
Parameter - ANSa numerical measurement describing some characteristic of a population
Statistic - ANSa numerical measurement describing some characteristic of a sample
Population - ANS(statistics) the entire aggregation of items from which samples can be drawn
Census - ANSa collection of data from every member of the population
Sample - ANSitems selected at random from a population and used to test hypotheses about
the population
Quanitative Data - ANSconsists of numbers representing counts or measurements
Qualitative Data - ANSData that uses characteristics or non numerical descriptive qualities
Nominal level of measurement - ANScharacterized by data that consist of names, labels, or
categories only. Cannot be arranged in an ordering scheme.
Ordinal level of measurement - ANScan be arranged in some order, but differences between
data values either cannot be determined or are meaningless.
Interval level of measurement - ANSthe differences between the numbers are equal and that
indicates that there are equal differences in whatever is being measured
Ratio level of measurement - ANSinterval level with additional property that there is also a
natural zero starting point.
Observational study - ANSobserve and measure specific characteristics, but do not attempt to
modify the subjects being studied
Experiment - ANSstudy where treatment is applied and then proceed to observe its effects on
the subjects
Cross sectional study - ANSData are measured at one point in time
Retrospective study - ANSData are collected from the past by going back in time (through
examination of records, interviews, and so on).
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