Sequential Stopping

Problem

Find the first look where the absolute z-score exceeds its threshold; return that index, or -1 if the test never stops.

Hint

Sequential tests stop as soon as evidence crosses an interim boundary.

case 1

in: [[1,2.5,3],[2,2.2,2.8]]

expected: 1

case 2

in: [[1,1],[1.5,1.5]]

expected: -1

case 3

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

expected: 0

case 4

in: [[],[]]

expected: -1

Starter codePython

def sequential_stopping(z_scores, thresholds):
    # Your code here
    pass

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