Wilcoxon signed-rank test
You'll explore the difference between the proportion of county-level votes for the Democratic candidate in 2012 and 2016 to identify if the difference is significant.
sample_dem_data is available, and has columns dem_percent_12 and dem_percent_16 in addition to state and county names. The following packages have also been loaded: pingouin and pandas as pd.
This exercise is part of the course
Hypothesis Testing in Python
Hands-on interactive exercise
Have a go at this exercise by completing this sample code.
# Conduct a paired t-test on dem_percent_12 and dem_percent_16
paired_test_results = ____
# Print paired t-test results
print(paired_test_results)