Edmunds.com would like to test the hypothesis that the standard deviation for the age of an imported car on the road is greater than the standard deviation for the age of a domestic car. The following data shows the ages of a random sample of import and domestic cars. 
Which of the following would be the correct value of the test statistic?
Definitions:
Columnar Journal
A financial record-keeping method that uses columns to organize and separate transactions based on their type or purpose.
Accounts Receivable Ledger
A financial document used to track all sales on credit and payments received, detailing each customer's balance and transactions.
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