A Random Sample of 160 Car Crashes Are Selected and Categorized

question 69

Multiple Choice

A random sample of 160 car crashes are selected and categorized by age. The results are listed below. The age distribution of drivers for the given categories is 18% for the under 26 group, 39% for the 26-45 group, 31% for
The 45-65 group, and 12% for the group over 65. Find the critical value χ $$\chi _ { 0 } ^ { 2 }$$ to test the claim that all ages have
Crash rates proportional to their driving rates. Use $$\alpha = 0.05$$ $$\begin{array} { l | c c c c } \text { Age } & \text { Under 26 } & 26 - 45 & 46 - 65 & \text { Over } 65 \\\hline \text { Drivers } & 66 & 39 & 25 & 30\end{array}$$

• A)7.815
• B)6.251
• C)11.143
• D)9.348

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Definitions:

Pollution Abatement

Measures and activities undertaken to reduce, control, or eliminate pollution from various sources in order to protect the environment.

Marginal Utility

The further gratification or value experienced by an individual upon consuming an extra unit of a particular good or service.

Supply-Side Market Failures

Situations where the supply side of a market does not allocate resources efficiently, often due to externalities or public goods problems.

Sellers

Individuals or entities that offer goods or services for sale in the market.