A Manufacturer Has Designed Athletic Footwear Which It Hopes Will

question 29

Multiple Choice

A manufacturer has designed athletic footwear which it hopes will improve the performance of athletes running the 100-metre sprint.It wishes to perform a hypothesis test to compare the times of athletes at the 100 metres with these shoes and with their usual shoes.

• A)Two-sample t-test,since the experiment has two samples.
• B)Not enough information is given.
• C)Either two-sample or paired t-test would be equally accurate.
• D)Pooled t-test,since the standard deviations of the two populations are likely to be the same.
• E)Paired t-test,since a natural pairing exists,and would detect differences between the population means better.

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Definitions:

Net Domestic Product

Gross domestic product minus depreciation.

Depreciation

The process by which the value of an asset decreases over time, often due to wear and tear or obsolescence.

Transfer Payments

Payments made by the government to individuals without the expectation of goods or services in return, such as welfare benefits and social security.

Depreciation

The process through which the value of assets decreases over time due to use, wear and tear, or obsolescence.