statspecialist.com http://www.statspecialist.com/blog/simple-linear-regression-the-steps-not-to-overlook/
Figure 1: Sample of plot showing homoskedastic and
heretoskedastic residuals
Statistics
Specialist
Simple Linear Regression; the steps not to overlook...
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statspecialist.com http://www.statspecialist.com/blog/simple-linear-regression-the-steps-not-to-overlook/
Figure 1: Sample of plot showing homoskedastic and
heretoskedastic residuals
Statistics
Specialist
Simple Linear Regression; the steps not to overlook
The name ‘simple linear regression’ can be deceiving, simple here is supposed to mean
that there is one dependent or response variable and one independent or explanatory
variable whose influence on the dependent variable is being assessed. The fact that
there are only two variables involved does not necessarily make it simple, at least
learning from the common mistakes that individuals commit in the process. So, here are
some steps you should follow when performing a simple linear regression.
1. Draw the scatterplot. This is an important exploratory step. It helps you to judge whether there is a linear
or non-linear relationship between the two variables and spot nonconformities to the pattern for some pairs
of observations. In case
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