Exhibit 10

question 90

Multiple Choice

Exhibit 10.6.A university wants to compare out-of-state applicants' mean SAT math scores (μ₁) to instate applicants' mean SAT math scores (μ₂) .The university looks at 35 instate applicants and 35 out-of-state applicants.The mean SAT math score for instate applicants was 540,with a standard deviation of 20.The mean SAT math score for out-of-state applicants was 555,with a standard deviation of 25.It is reasonable to assume the corresponding population standard deviations are equal. Refer to Exhibit 10.6.Calculate a 95% confidence interval for the difference μ₁ - μ₂.

• A)[-25.6067,-4.3933]
• B)[-25.7961,-4.2039]
• C)[-25.8124,-4.1876]
• D)[-33.6105,3.6105]

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Definitions:

Negative Externality

A cost that affects a party who did not choose to incur that cost, often associated with production or consumption of goods and services.

Property Value

The market worth of real estate, influenced by factors such as location, amenities, and the condition of the property.

External Cost

A cost that is not borne by the parties to an economic transaction, often affecting third parties who did not choose to incur that cost.

Social Cost

The total cost to society as a whole due to an activity or decision, including both direct costs and indirect externalities.