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

question 20

Essay

Random samples from two normal populations produced the following statistics: $n _ { 1 } =$ 10, $s _ { 1 } ^ { 2 } =$ 40. $n _ { 2 } =$ 15, $S _ { 2 } ^ { 2 } =$ 20.
Is there enough evidence at the 5% significance level to infer that the variance of population 1 is larger than the variance of population 2?

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