Exhibit 11-5

question 50

Multiple Choice

Exhibit 11-5.Amie Jackson,a manager at Sigma travel services,makes every effort to ensure that customers attempting to make online reservations do not have to wait too long to complete the reservation process.The travel website is open for reservations 24 hours a day,and Amie regularly checks the website for the waiting time to maintain consistency in service.She uses the following independently drawn samples of wait time during two peak hours,morning 8 am to 10 am and evening 7 pm to 9 pm,for the analysis.Assume that wait times are normally distributed. Refer to Exhibit 11-5.Identify the 95% interval estimate for the ratio of the population variances.

• A)[1.02,8.55]
• B)[1.00,8.73]
• C)[0.99,8.83]
• D)[1.19,7.34]

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Definitions:

Financial System

The complex of institutions, including banks, markets, and regulators, that facilitate the flow of funds between savers and borrowers.

Open Market Operations

Central bank activities that involve the buying and selling of government securities in the market to influence liquidity and interest rates.

Reserve Requirement

Central bank regulations regarding the minimum amount of reserves that commercial banks must hold against deposits.

Margin Requirements

The minimum amount of equity that must be maintained in a margin account as mandated by brokers or exchanges.