comparing average often we want to compare the average of a continuous variable in different groups examples continuous variable categorical variable height before and after a treatment weight treatment and ...
Filetype Power Point PPTX | Posted on 30 Aug 2022 | 4 years ago
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...Comparing average often we want to compare the of a continuous variable in different groups examples categorical height before and after treatment weight placebo bloodbpressure men women triglycerides blood two treatments cd counts sick healthy cholesterol normal overweight paired or independent sample when must distinguish between layouts observations same individual is measured twice example samples individuals have been this gives t tests test on subject case control with identical twins spss need set up data differently for setup...