Identify the non-parametric tests used in statistical analysis. Choose the correct answer from the options given below.

1.Chi-square test

2.U-test

3.H-test

4.T-test

A1, 2 only

B2, 3 only ✓ Correct

C3, 4 only

D1, 4 only

Correct answer: (B) 2, 3 only

Explanation

Among the given options, the U-test and the H-test are both non-parametric, matching statements 2 and 3.

The U-test is the Mann-Whitney test comparing two independent groups without distributional assumptions.

The H-test is the Kruskal-Wallis test extending that logic to three or more groups.

The t-test is parametric, assuming normality and interval data, so statement 4 does not belong.

The chi-square test in statement 1 is itself non-parametric, yet no option pairs it with U and H.

Non-parametric tests rank or categorise data and avoid assumptions about the population distribution.

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