Taylor Conran
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Problem with R Studio - 2 levels only
I ran into a problem in R Studio. I am trying to run a t-test and it says "grouping data must have exactly 2 levels". Anyone know how to do this t-test with our values? We are trying to use bar charts showing means with error bars by presenting the results in Excel. Also need to know how to segment results using ANOVA.
rstudio.png
rstudio.png
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