Using a dataset from the Washington Post, we talked about the age distribution of those killed by police in class today. The data, which includes the ages of every individual, has a slightly skewed distribution, according to the descriptive statistics. It is discovered that 67% of the individuals shot by the police fall between the ages of 24 and 50 after comparing the distribution to a normal distribution and calculating the number of people lying within the standard deviation of -1 to 1.
Then, we follow the same procedures for both the white and black races to locate it. We discover that 68% of the black individuals who were shot were between the ages of 21 and 44, while the white individuals were between the ages of 27 and 53. Next, we attempt to determine whether there is a difference in the average number of Black and White individuals shot by police, and if so, by how much. We determine that there is a discrepancy of about 7 years using the Monte Carlo approach, and this disparity is not the result of chance.
We also utilize Cohen’s d technique to determine the impact of the difference on the entire dataset. The result, 0.577, falls into the Cohen-Sawilowsky category of medium impact size.