Random Samples from Two Normal Populations Produced the Following Statistics $n _ { 1 } =$

Essay

Random samples from two normal populations produced the following statistics: $n _ { 1 } =$ 25, $s _ { 1 } ^ { 2 } =$ 75. $n _ { 2 } =$ 13, $S _ { 2 } ^ { 2 } =$ 130.
Estimate with 95% confidence the ratio of the two population variances.