The Average Greyhound Can Reach a Top Speed Of $18.8$ Meters Per Second

question 97

Multiple Choice

The average greyhound can reach a top speed of $18.8$ meters per second. A particular greyhound breeder claims her dogs are faster than the average greyhound. A sample of 50 of her dogs ran, on average, $19.2$ meters per second with a population standard deviation of $1.4$ meters per second. With $\alpha = 0.05$ , is her claim correct?

• A) Yes, because the test value 0.04 falls in the noncritical region.
• B) No, because the test value 0.40 falls in the critical region.
• C) No, because the test value 0.04 falls in the critical region.
• D) Yes, because the test value 2.02 falls in the critical region.

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Definitions:

Gross Earnings

The total income earned by an individual or a business before any deductions or taxes are taken out.

Withholding Allowance

A claim made by an employee on a form W-4 to determine the amount of income tax withheld from their paycheck.

Federal Income Tax

A charge imposed by the IRS on the yearly income of persons, corporations, trusts, and various legal bodies.

Gross Earnings

The total amount of money earned by an individual or company before deductions such as taxes and retirement contributions.