Judging smiles


It's often hypothesized (and backed in some studies) that smiling can increase leniency, or reduce the effects of wrongdoing among other benefits.

A 1995 study by Marianne LaFrance & Marvin Hecht produced a dataset containing 4 different types of smiles, as well as the judge's leniency against judging wrongdoing when seeing these smiles.

The dataset can be interpreted as follows:


  • 1 - false smile
  • 2 - is felt smile
  • 3 - is miserable smile
  • 4 - is neutral control

Leniency: a measure of how lenient the judgments were, higher means the judges were more lenient

Given the above information:

  • Plot the leniency by smile type in a parallel box plot
  • Based on the box plot above, which smile condition resulted in the highest leniency?
  • Is the median leniency for the false smile lower than the 75th percentile leniency score for the neutral expression?

Below is code to import the dataset into a Google Colab or Jupyter notebook to help get you started:

# Here is code to pull the dataset and relevant libraries 
# into a Google Colab or Jupyter notebook to help get you started
import matplotlib.pyplot as plt
import numpy as np
import pandas as pd
import seaborn as sns
df = pd.read_csv('https://raw.githubusercontent.com/erood/interviewqs.com_code_snippets/master/Datasets/smile_leniency.csv')


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