An Environmental Group at a Local College Is Conducting Independent

question 24

Multiple Choice

An environmental group at a local college is conducting independent tests to determine the distance a particular make of automobile will travel while consuming only 1 gallon of gas.A sample of five cars is tested and a mean of 28.2 miles is obtained.Assuming that the standard deviation is 2.7 miles,find the 95% confidence interval for the mean distance traveled by all such cars using 1 gallon of gas.

• A)[26.16 30.24]
• B)[20.70 35.70]
• C)[24.85 31.55]
• D)[26.70 29.70]
• E)[25.83 30.57]

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Definitions:

Condensation Nuclei

Tiny particles in the atmosphere on which water vapor condenses to form clouds and precipitation.

Carbon Monoxide

A colorless, odorless, and toxic gas produced by incomplete combustion of carbon-containing materials.

Sea Salt

Salt produced through the evaporation of seawater, used in cooking and cosmetics, and containing minerals not found in table salt.

Soil Porosity

The measure of the void spaces in soil, affecting its ability to hold water and air, crucial for plant roots and soil organisms.