The Average Greyhound Can Reach a Top Speed of 18

question 56

Multiple Choice

The average greyhound can reach a top speed of 18.5 meters per second. A particular greyhound breeder claims her dogs are faster than the average greyhound. A sample of 40 of her dogs ran, on average, 19.2 meters per second with a population standard deviation of 1.2 meters per second. With α = 0.05, is her claim correct?

• A) Yes, because the test value 0.09 falls in the noncritical region.
• B) No, because the test value 0.09 falls in the critical region.
• C) Yes, because the test value 3.69 falls in the critical region.
• D) No, because the test value 0.70 falls in the critical region.

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Definitions:

Aggregate Demand

The total consumption needs for goods and services within an economy, considering the current price level throughout a certain period.

Macroeconomic Problem

Issues or challenges affecting an entire economy, such as inflation, unemployment, and economic growth.

Equilibrium Level

In economics, the point at which market supply equals demand, and there is no tendency for change in price or quantity.

Potential Level

The maximum output an economy can produce without leading to inflation, when resources such as labor and capital are fully utilized.