The State Highway Department Is Studying Traffic Patterns on One

question 98

Multiple Choice

The state highway department is studying traffic patterns on one of the busiest highways in the state. As part of the study, the department needs to estimate the average number of vehicles that pass an intersection each day. A random sample of 64 days gives us a sample mean of 14,205 cars and a sample standard deviation of 1,010 cars. After calculating the confidence interval, the highway department officials decide that the precision is too low for their needs. They feel the precision should be 300 cars. Given this precision, and needing to be 99 percent confident, how many days do they need to sample?

• A) 109
• B) 80
• C) 79
• D) 62
• E) 9

Comprehend the influence of cultural perspectives on group behavior and dynamics.

Recognize the role of groups in shaping societal structures and individual actions.

Understand the ethical considerations in studying human behavior, including informed consent and the impact of researcher involvement.

Apply Lewin's Field Theory to analyze individual behavior changes within groups.

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Definitions:

Gasoline

A flammable liquid derived from petroleum, used primarily as fuel in internal combustion engines.

Price Elasticity

An assessment of demand's elasticity regarding the pricing changes of a specific product.

Demand

The quantity of a good or service that consumers are willing and able to purchase at various prices, holding all else constant.

Cost Function

An equation that calculates the total cost incurred by a company to produce a specific quantity of a good or service.