If a Relationship Exists Among Three or More Entities,then

question 122

Multiple Choice

If a relationship exists among three or more entities,then:

• A)recursive relationships must be established through the use of recursive foreign keys
• B)a separate relation with a primary key that is the composite of the primary keys of each of the participating entities is created
• C)separate relations are established for each class and for each of the subclasses
• D)use the primary key of relation A as a foreign key in relations B and C

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Definitions:

Test-Statistic

A quantity derived from sample data used in a hypothesis test to make a decision about the population parameter.

Right Tailed

Pertaining to a type of hypothesis test where the area of interest is in the right tail of the distribution, typically testing for values greater than a certain number.

Test-Statistic

A value calculated from sample data during hypothesis testing used to determine whether to reject the null hypothesis.

P-Value

the probability of obtaining test results at least as extreme as the ones observed during the study, assuming that the null hypothesis is correct.