A Professor at a University Finds a Way to Reduce

question 51

Multiple Choice

A professor at a university finds a way to reduce the costs of producing automobile glass.The method is very easy for anyone to copy.A company develops a substance which prevents eyeglasses from smudging.It receives a patent on the formula.Which of these are common technological knowledge?

• A)the method to reduce costs of producing automobile glass,and the formula for the substance that prevents smudging
• B)the method to reduce costs of producing automobile glass,but not the formula for the substance that prevents smudging
• C)the formula for the substance that prevents smudging,but not the method to reduce costs of producing automobile glass
• D)neither the method to reduce costs of producing automobile glass nor the formula for the substance that prevents smudging

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Definitions:

Directional

Pertains to hypotheses or research that specify a direction (increase or decrease) in the expected outcome.

Null Hypothesis

A default hypothesis that there is no significant difference or effect, typically to be tested against an alternative hypothesis.

Null Hypothesis

A statistical hypothesis that assumes no significant difference or effect exists between certain characteristics of a population or data.

Equals Sign

A symbol (=) indicating mathematical equality between two expressions.