(Exercises 1326) For each description of data, identify the Ws, name the variables, specify for each variable whether its use indicates that it should be treated as categorical or quantitative, and, for any quantitative variable, identify the units in which it was measured (or note that they were not provided).Fuel economy The Environmental Protection Agency (EPA) tracks fuel economy of automobiles based on information from the manufacturers (Ford, Toyota, etc.). Among the data the agency collects are the manufacturer, vehicle type (car, SUV, etc.), weight, horsepower, and gas mileage (mpg) for city and highway driving.
BUSS 301 Notes Chapter 1 Data: Values assigned to specific observations or measurements. Information: Derived from the facts for the purpose of making a decision Sources of Data: Primary Data Obtained by the person using it Secondary Data Data collected by someone else. No control over how the data was collected. Direct ObservationGathering data when subjects of interest are in natural environment Focus groupDirect observation technique where individuals are paid to discuss their opinions ExperimentSubjects exposed to treatments and data of interest is recorded SurveyDirectly asking