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content/posts/2016/2016-02-05-remember-the-x-files/index.Rmarkdown

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@@ -47,7 +47,6 @@ library(broom)
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library(knitr)
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library(magrittr)
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library(tRakt) # remotes::install_github("jemus42/tRakt")
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library(tadaatoolbox) # remotes::install_github("tadaadata/tadaatoolbox")
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library(waffle) # remotes::install_github("hrbrmstr/waffle")
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theme_set(
@@ -339,13 +338,7 @@ xfiles %>%
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)
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```
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As you can see, there's quite a nice distinction. Especially the second plot shows an obvious difference which is so big a statistical test for significance would be entirely pointless. But who am I to judge, here's a t-test.
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```{r}
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tadaa_t.test(xfiles, rating, plotarc, print = "markdown")
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```
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If you're not familiar with t-tests and power analysis: That's ridiculous. The p-value indicates significance by it's own right, and the effect size of $d = 1.421$ tells use the effect is *huge*, with effect sizes greater than 0.8 commonly referred to as large. Also, the power is 1 (rounded value, so *very close to 1*), which basically means that with that data it's theoretically next to impossible no not spot that difference if our data was a sample of a larger "population" of episodes.
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As you can see, there's quite a nice distinction. Especially the second plot shows an obvious difference which is so big a statistical test for significance would be entirely pointless.
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Anyway, let's continue.
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The next thing I'm curious about is if that difference in ratings is seen throughout the series, or possibly limited to some seasons.

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