Find the critical values

χ2L=χ21-α/2 χ L 2 = χ 1 - α / 2 2 and χ2R=χ2α/2 χ R 2 = χ α / 2 2

that correspond to 80 % degree of confidence and the sample size

n=15.

χ2L = χ L 2 =

χ2R = χ R 2 =

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