This dataset is designed for teaching the test for heteroscedasticity following a linear regression analysis. The dataset is a subset of data derived from the 2015 Fuel Consumption Report from Natural Resources Canada. The example estimates a simple regression model of whether the size of an automobile’s engine predicts the highway fuel consumption of that automobile. After performing the regression, it shows how to examine the results for evidence of heteroscedasticity. The dataset file is accompanied by a teaching guide, a student guide, and a how-to guide for SPSS.
You can preview and download the dataset from this tab. The dataset is available in multiple file formats, compatible with most common software packages. You can also view and download the Codebook, which provides information on the structure, contents, and layout of the dataset.
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In this tab you will find guides on using this dataset. The Teaching Guide is designed for faculty who are teaching research methods and statistics, with suggestions on how to use the dataset in lab exercises, in homework assignments and as exam questions. The Student Guide introduces the method for students, and can be used in teaching to provide students with an introductory overview of the method or test. The How-to Guide shows how to perform the technique or test using data analysis software.
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Natural Resources Canada. (2015). Fuel consumption ratings [Data file]. Retrieved from http://data.gc.ca/data/en/dataset/98f1a129-f628-4ce4-b24d-6f16bf24dd64
2015 – Fuel Consumption Ratings
Natural Resources Canada, Government of Canada
http://data.gc.ca/data/en/dataset/98f1a129-f628-4ce4-b24d-6f16bf24dd64
Vehicles for retail sale in Canada
Natural Resources Canada
Dataset contains information licensed under the Open Government Licence – Canada (http://open.canada.ca/en/open-government-licence-canada)
2015
Vehicles
Canada
year
Year
make
Make
model
Model
class
Class
enginesize
Engine Size
fuelusecity
Fuel Use City
fuelusehwy
Fuel Use Highway
fueluseboth
Fuel Use Combined
mpgboth
MPG Combined
co2emissions
CO2 Emissions
cylinders468
Num of Cylinders
cylinder4
4-cylinder
cylinder6
6-cylinder
cylinder8
8-cylinder
trans2
Transmission
fuel
Fuel Type
Heteroscedasticity
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