Exhibit 10

question 89

Multiple Choice

Exhibit 10.3.A restaurant chain has two locations in a medium-sized town and,believing that it has oversaturated the market for its food,is considering closing one of the restaurants.The manager of the restaurant with a downtown location claims that his restaurant generates more revenue than the sister restaurant by the freeway.The CEO of this company,wishing to test this claim,randomly selects 36 monthly revenue totals for each restaurant.The revenue data from the downtown restaurant have a mean of $360,000 and a standard deviation of $50,000,while the data from the restaurant by the freeway have a mean of $340,000 and a standard deviation of $40,000.Assume there is no reason to believe the population standard deviations are equal,and let and denote the mean monthly revenue of the downtown restaurant and the restaurant by the freeway,respectively. Refer to Exhibit 10.3.What is the appropriate critical value(s) to test the manager's claim at the 5% significance level?

• A)1.645
• B)1.668
• C)1.960
• D)1.997

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Definitions:

Lactic Acid

A chemical byproduct of anaerobic respiration, mostly known for causing muscle fatigue and soreness during intense physical activity.

Epiglottis

A thin, flexible structure that guards the entrance to the larynx, preventing food from entering the airway during swallowing.

Nasal Cavity

The large air-filled space behind the nose, involved in breathing and smelling, lined with mucous membranes to filter, warm, and humidify air.

Glottis

The opening between the vocal cords in the larynx, playing a key role in producing vocal sounds and regulating airflow during breathing.