Suppose Taxi Fare from Logan Airport to Downtown Boston Is

question 119

Multiple Choice

Suppose taxi fare from Logan Airport to downtown Boston is known to be normally distributed with a standard deviation of $2.50. The last seven times John has taken a taxi from Logan to downtown Boston, the fares have been $22.10, $23.25, $21.35, $24.50, $21.90, $20.75, and $22.65. What is a 95% confidence interval for the population mean taxi fare?

• A) [$17.46, $27.26]
• B) [$20.46, $24.16]
• C) [$20.80, $23.91]
• D) [$21.66, $23.06]

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Definitions:

Digestive System

A group of organs working together to convert food into energy and basic nutrients to feed the entire body, including processes like ingestion, digestion, absorption, and excretion.

Cardiovascular System

The network of organs and vessels through which blood flows, carrying oxygen and nutrients to the body's cells, and removing waste products.

Respiratory System

The biological system consisting of specific organs and structures used for gas exchange in animals and plants.

Urinary System

The organ system responsible for creating, storing, and eliminating urine.