# Import packages and functions

import pandas as pd

from statsmodels.stats.proportion import proportions$\_$ztest

# Load the dataset

trails $=$ pd$.$read$\_$csv$(\text{'}$trails$.$csv$\text{'})$

x $=$ trails$[\text{'}$lowvolume$\text{'}].$value$\_$counts$()$

n $=$ trails.shape$[0]$

# Find the test statistic and p$-$value

test $=$ # Your code goes here

print$(\text{'}$Test statistic:$\text{'},$ test$[0])$