Exercise

# One-sample t-test

In this exercise, you will perform a one-sample t-test using the `ttest_1sample()`

function. Using `eudata`

, a dataset of country-level statistics, you'll be looking at the sex ratios found in the population of European countries. You'll use a one sample t-test to determine if the mean sex ratio found among European countries differs significantly from 50-50. First, you'll make some plots, then you'll perform your test. `pandas`

, `scipy.stats`

, and `plotnine`

have been loaded into the workspace as `pd`

, `stats`

, and `p9`

.

Instructions 1/2

**undefined XP**

- Run the provided code, specifying the correct DataFrame, to print a density plot of
`Sex_ratio`

.