Suppose That Data Are Assembled on (1) Research and Development

question 4

Multiple Choice

Suppose that data are assembled on (1) research and development expenditures as a fraction of industry costs across U.S. industries (ranked from highest to lowest) , and (2) the export success of U.S. industries (ranked from highest to lowest) . If the "product cycle theory" is useful as an explanation for the pattern of U.S. exports, then an analyst would expect that statistical association (rank correlation coefficient) between these two series of data would be

• A) positive.
• B) zero.
• C) negative
• D) positive, zero, or negative - cannot be determined without more information.

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Definitions:

Rheumatic Fever

An inflammatory disease that can develop as a complication of untreated or improperly treated strep throat or scarlet fever.

Grape-Like Clusters

A descriptive term often used in microbiology to describe the appearance of certain bacteria, such as Staphylococcus, when viewed under a microscope.

Staphylococci

A group of bacteria commonly found on the skin and in the nose, which can cause a range of infections, from minor to life-threatening.

Stain

In microbiology, a solution of a dye or group of dyes that imparts a color to microorganisms.