One-Sample t-Statistic

Problem

Return the one-sample t-statistic (mean - mu0) / (s / sqrt(n)), where s is the sample standard deviation with denominator n - 1. Return 0.0 when n < 2 or the sample variance is zero.

Hint

The denominator is the standard error of the mean.

Test cases

case 1

in: [[1,2,3,4,5],3]

expected: 0

case 2

in: [[1,2,3,4,5],0]

expected: 4.242640687119285

case 3

in: [[10,12,14],12]

expected: 0

case 4

in: [[10,12,14],10]

expected: 1.7320508075688774

case 5

in: [[5],5]

expected: 0

Starter codePython

def t_statistic(data, mu0):
    # Your code here
    pass

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