Which of the following correctly describes the sign test?

a. It often uses the directions of differences observed in matched-pairs sample to determine whether the relative frequency distributions of two statistical populations are identical to or different from one another.
b. It is often used to determine whether a sample comes from a population with a specified median.
c. Both a and b.
d. Neither a nor b.


C

Business

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The public relations department makes sure internal publics and the general public are both aware of a corporation's social responsibility efforts

Indicate whether the statement is true or false

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