In: Math
Calculate confidence intervals for ratio of two population variances and ratio of standard deviations. Assume that samples are simple random samples and taken from normal populations.
a. ?=0.05, ?1=30,?1=16.37,?2=39,?2=9.88,
b. ?=0.01, ?1=25,?1=5.2,?2=20,?2=6.8,