[Solved] Identify the error in this code snippet using the Wilcoxon signed-rank test:from scipy.stats import wilcoxon x = [1, 2, 3] y = [1, 2] stat, p = wilcoxon(x, y) print(stat, p) | SciPy

SciPy - Statistical Tests

Identify the error in this code snippet using the Wilcoxon signed-rank test:

from scipy.stats import wilcoxon
x = [1, 2, 3]
y = [1, 2]
stat, p = wilcoxon(x, y)
print(stat, p)

ALists x and y have different lengths causing an error

BWilcoxon test requires numpy arrays, not lists

CWilcoxon test cannot be used with integer data

DMissing import for numpy

Step-by-Step Solution

Solution:

Step 1: Check input data lengths
Wilcoxon test requires paired samples of equal length; here x has 3 elements, y has 2.
Step 2: Identify error cause
Different lengths cause a ValueError when running the test.
Final Answer:
Lists x and y have different lengths causing an error -> Option A
Quick Check:
Equal length inputs required = Lists x and y have different lengths causing an error [OK]

Quick Trick: Paired samples must have same length for Wilcoxon [OK]

Common Mistakes:

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Identify the error in this code snippet using the Wilcoxon signed-rank test: