Amie Jackson, a Manager at Sigma Travel Services, Makes Every

question 37

Multiple Choice

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 a.m. to 10 a.m. and evening 7 p.m. to 9 p.m., for the analysis. Assume that wait times are normally distributed. At the 10% significance level, which of the following is the correct conclusion?

• A) Do not reject H₀. We cannot conclude that the variance of wait time during morning peak hours differs from that during the evening peak hours.
• B) Reject H₀. We conclude that the variance of wait time during morning peak hours differs from that during the evening peak hours.
• C) Do not reject H₀. We conclude that the variance of wait time during morning peak hours differs from that during the evening peak hours.
• D) Reject H₀. We cannot conclude that the variance of wait time during morning peak hours differs from that during the evening peak hours.

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Definitions:

Replicate

To duplicate or reproduce an experiment, study, or procedure to verify its results.

Extant Cetaceans

Currently living species of the marine mammal group that includes whales, dolphins, and porpoises.

Ancestors

Predecessors from whom a person or animal is descended, often considered in the context of evolution, genealogy, or cultural heritage.

Hindlimbs

The rear limbs or legs of an animal, often used for propulsion in terrestrial species.