I'm working on a homework question and I am looking for some assistance.
The question refers back to another, but I believe this is all the information below.
n = 20
variance = 1.4
let S^2 denote the sample variance of the 20 measurements
a) find b such that P(S^2 < b) = .975
b) find a such that P(a < S^2) = .975
the answers are given in the back, which are