MediumStatisticsst-335

Standard Error of Skewness

Problem

The standard error of the sample skewness is sqrt(6 n (n - 1) / ((n - 2)(n + 1)(n + 3))).

Given the sample size n >= 3, return the standard error.

Hint

The denominator uses three shifted factors of n.

case 1

in: [10]

expected: 0.6870429186215167

case 2

in: [50]

expected: 0.33660070854935886

case 3

in: [3]

expected: 1.224744871391589

Starter codePython

def standard_error_of_skewness(n):
    # Your code here
    pass

3 test cases · run your code against them in the editor