Statistical Sciences 2035 Chapter Notes - Chapter 1: Fax, Random Number Table, Response Bias
10 Sep 2013
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Population: a set of units (usually people, objects, or events: ex. All of last year"s graduates from an mba program. Variable: a measureable characteristic of a population unit: quantitative: variables that are numbers or quantities. Usually consists of how much" or how many". Starting salary of last year"s graduates of an mba program: qualitative: variables that are categorical to which a population unit belongs. Measurement: process of determining the quantity or extent of the variable for some particular unit of the population: ex. Measuring the starting salary of an mba graduate to the nearest dollar. Value: the specific measurement for a particular unit in the population (result of measurement: ex. Starting salary of an mba graduate to the nearest dollar. Population of measurement (observation): measurement of the variable of interest for each and every population unit: census: an examination of the entire population of measurement, ex. Annual starting salaries of all graduates from last year"s mba program.
