Suppose that X has Chisquare distribution with variance 40 F

Suppose that X has Chi-square distribution with variance 40. Find a constant b such that P(X > b) = 0.1. Find a constant a such that P(X

Solution

Var ( X^2) = 2 v

v = 40 / 2 =20

finding a value of constant with v = 20 and alpha = 0.1

b = 28.412

finding a value of constant with v = 20 and apha = 0.90

a = 12.443