[Hypothesis]    H_o : σ ² = σ_o²   ( > 0)
   H₁ : σ² ≠ σ_o²    H₁ : σ² > σ_o²    H₁ : σ² < σ_o²

[Test Type]   χ²-test
      Significance Level   α =   (0 < α < 1)
[Sample Data]  (input either sample data or sample statistics using csv / bsv) [Sample Statistics]

	Sample Size	n	=		( > 1)
	Sample Variance	s2	=		( > 0)

[Confidence Interval]       χ²_{n-1 ; 1-α/2} =       χ²_{n-1 ; α/2} =

( (n-1)s2 / χ2n-1 ; α/2 ,

(n-1) s2 / χ2n-1 ; 1-α/2  )

⇔

(    ,

)

Execute       α =   ^{0 1}   

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