Every Person in the World Has a Birthdate,but No Person

question 10

Multiple Choice

Every person in the world has a birthdate,but no person has more than one birthdate.Thus,the cardinality that exists between birthdate and people is

• A) one-to-one.
• B) one-to-many.
• C) many-to-many.
• D) none of the above

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Definitions:

One-tailed Test

A hypothesis test where the region of rejection is on only one side of the sampling distribution.

Two-tailed Test

A two-tailed statistical hypothesis test that examines if a sample falls outside a specific range of values, testing for both exceeding and falling short of this range.

Expected Value

The mean value of a random variable, computed by multiplying each possible value by its probability and summing up these products.

Test Statistic

A value calculated from sample data during a hypothesis test used to determine the likelihood of the null hypothesis being true.