![]() ![]() A public health researcher is studying smoking addiction in young people. He believes the data will show that heavier smokers began smoking at a younger age than lighter smokers and is especially interested to know if the association is linear. This example uses the file smokers.sav . The data, from the National Household Survey of Drug Abuse, are a probability sample of American households. The first step will be to weight the data to reflect population trends. |
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One-way ANOVA and Test of Linearity |