A professor wants to make sure that two different versions of a test are equivalent. He decides to compare the variances of the test scores from each version. A sample of 20 scores on Version A has a sample variance of 1.139, while a sample of 25 scores from Version B has a sample variance of 3.958.   Step 1 of 2 :   Construct a 99% confidence interval for the ratio of the population variances of the scores on the two versions of the test. Round the endpoints of the interval to four decimal places, if necessary.   Step 2 of 2   Interpret the confident interval obtained on Step 1

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