Question

Write down the chi-square test statistics for testing the variance with Hypothesis.

Answer 1

Chi-square tests:

Test for population variance:

H₀: σ² = σ²₀; H₁ : σ² ≠ σ² 0; 

OR H,: σ² > σ² 0; 

OR H₁: σ² < σ²₀;