Challenge: Second Levene's Test
Task
Swipe to start coding
This task is related to the previous task. As you remember from the graphs for the 'Earning' columns, you might think that the variances are different. Is it really so?
- Import
levenetest. - Do the Levene's test.
Solution
# Import libraries
import pandas as pd
from scipy.stats import levene
# Read .csv files
df_control = pd.read_csv('https://codefinity-content-media.s3.eu-west-1.amazonaws.com/c3b98ad3-420d-403f-908d-6ab8facc3e28/ab_control.csv', delimiter=';')
df_test = pd.read_csv('https://codefinity-content-media.s3.eu-west-1.amazonaws.com/c3b98ad3-420d-403f-908d-6ab8facc3e28/ab_test.csv', delimiter=';')
# Do Levene's test
statistic, p_value = levene(df_control['Earning'], df_test['Earning'])
# Print result of Levene's test
print('Statistic:', statistic)
print('p-value:', p_value)
# Determine whether the variances are similar
if p_value > 0.05:
print('The variances of the two groups are NOT statistically different')
else:
print('The variances of the two groups are statistically different')
Everything was clear?
Thanks for your feedback!
Section 3. Chapter 6
# Import libraries
import pandas as pd
from ___ import ___
# Read .csv files
df_control = pd.read_csv('https://codefinity-content-media.s3.eu-west-1.amazonaws.com/c3b98ad3-420d-403f-908d-6ab8facc3e28/ab_control.csv', delimiter=';')
df_test = pd.read_csv('https://codefinity-content-media.s3.eu-west-1.amazonaws.com/c3b98ad3-420d-403f-908d-6ab8facc3e28/ab_test.csv', delimiter=';')
# Do Levene's test
statistic, p_value = ___(___['Earning'], ___['Earning'])
# Print result of Levene's test
print('Statistic:', statistic)
print('p-value:', p_value)
# Determine whether the variances are similar
if p_value > 0.05:
print('The variances of the two groups are NOT statistically different')
else:
print('The variances of the two groups are statistically different')
