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Calculate confidence intervals for ratio of two population variances and ratio of standard deviations. Assume that...

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,

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