The Angled Lines in an Entity-Relationship (E-R) Diagram Used as Shorthand

question 16

Multiple Choice

The angled lines in an entity-relationship (E-R) diagram used as shorthand to represent multiple relationships are referred to as a(n) ________.

• A) crow's foot
• B) identifier
• C) attribute
• D) cardinality line

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Definitions:

Type II Error

In statistical hypothesis testing, the error that occurs when one fails to reject a false null hypothesis (a false negative).

Significant

Indicates that the results in statistical analysis are likely not due to chance, and there is a certain degree of reliability in the findings.

Power

The probability that a statistical test will correctly reject a false null hypothesis, a measure of a test's capability to detect an effect when there is one.

Hypothesis Testing

A statistical method used to evaluate the plausibility of a hypothesis by using sample data.