Sign Test Positive Count

Problem

The sign test statistic counts how many paired differences are strictly positive.

Given the differences, return the count of positive values.

Hint

Zero differences are not signs and are excluded.

case 1

in: [[1,-2,3]]

expected: 2

case 2

in: [[-1,-2]]

expected: 0

case 3

in: [[0,0,1]]

expected: 1

Starter codePython

def sign_test_positive_count(differences):
    # Your code here
    pass

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