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8th Edition

Frederick J Gravetter + 1 other

Publisher: Cengage Learning

ISBN: 9781133956570

Chapter 5, Problem 1P

Textbook Problem

What information is provided by the sign (+/–) of a *z*-score? What information is provided by the numerical value of the *z*-score?

Expert Solution

To determine

**To Find:** The information is provided by the sign

The sign of z-score indicates whether the location is above the mean or below the mean. The numerical value of z-score specifies the number of standard deviations between X and

According to the concept of z-score, the z-score identifies an exact location in a distribution with a single number. The sign of z-score describes the location is above the mean “plus sign” and location below the mean “minus sign” and the numerical value of z-score specifies the distance from the mean in terms of number of standard deviations.

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Essentials of Statistics for the Behavioral Sciences

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