b
Observations that have been collected
What is Data?
Religion, Jersey numbers
What is Qualitative Data?
What is Nominal Data?
To avoid working late, a quality control analyst simply inspects the first 100 items produced in a day.
What is Convenience?
Complete collection of all elements under study
What is Population Data?
Temperature, Weight
What is Quantitive?
What is Continuous?
An education researcher randomly selects 48 middle schools and interviews all the teachers at the school.
What is Cluster?
Subcollection of the members from the population
What is Sample Data?
-Number of people, Number of cars
-Low, Medium, High
What is Discrete Data?
What is Ordinal?
A tax auditor selects every 100th income tax return that is received.
What is Systematic?
Numerical measurement calculated from population data
What is Parameter?
Temperature, Date: Why?
What is Interval Data?
These numbers are on an interval scale as the distance between them is measurable and comparable.
A market researcher randomly selects 300 drivers less than 25 years of age and 400 drivers over 25 years of age.
What is Stratified?
Numerical measurement calculated from sample data
What is Statistic?
Height, Age: Why?
What is ratio?
Interval data with additional
property that there is also a natural zero starting point
A pollster uses a computer to generate 420 random numbers and interviews the voters corresponding those numbers?
What is Random?