The State Transportation Department Is Thinking of Changing Its Speed

question 8

Multiple Choice

The State Transportation Department is thinking of changing its speed limit signs.It is considering two new options in addition to the existing sign design.At question is whether the three sign designs will produce the same mean speed.To test this,the department has conducted a limited test in which a stretch of roadway was selected.With the original signs up,a random sample of 30 cars was selected and the speeds were measured.Then,on different days,the two new designs were installed,30 cars each day were sampled,and their speeds were recorded.Suppose that the following summary statistics were computed based on the data: Based on these sample results and a significance level equal to 0.05,assuming that the null hypothesis of equal means has been rejected,the Tukey-Kramer critical range is:

• A)1.96.
• B)approximately 4.0.
• C)Can't be determined without more information.
• D)None of the above.

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Definitions:

Tenant

A person who assumes the temporary legal right to possess property. Also called lessee.

Liability

The state of being legally responsible for something, especially in terms of debts or financial obligations.

Landlord-Tenant Relationship

The legal arrangement and duties between a property owner and a person renting or leasing that property.

Severity

in the context of risk management, describes the extent of impact or damage a risk event could potentially cause.