BuyFind

Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
Publisher: Cengage Learning
ISBN: 9781133956570
BuyFind

Essentials of Statistics for the B...

8th Edition
Frederick J Gravetter + 1 other
Publisher: Cengage Learning
ISBN: 9781133956570

Solutions

Chapter
Section
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 (+/) of z-score and the information is provided by the numerical value.

Answer to Problem 1P

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 μ_.

Explanation of Solution

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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Chapter 5 Solutions

Essentials of Statistics for the Behavioral Sciences
Ch. 5.3 - A distribution of English exam scores has = 70...Ch. 5.3 - A distribution of English exam scores has = 50...Ch. 5.4 - A population of scores has = 73 and = 8. If the...Ch. 5.4 - A population with a mean of = 44 and a standard...Ch. 5.6 - For a sample with a mean of M = 40 and a standard...Ch. 5.6 - For a sample with a mean of M = 80 and a standard...Ch. 5.6 - For a sample with a mean of M = 85, a score of X =...Ch. 5.6 - For a sample with a standard deviation of s = 12,...Ch. 5.6 - A sample has a mean of M = 30 and a standard...Ch. 5 - What information is provided by the sign (+/) of a...Ch. 5 - A distribution has a standard deviation of = 10....Ch. 5 - For a distribution with a standard deviation of =...Ch. 5 - For a population with = 80 and = 10, a.Find the...Ch. 5 - For a population with = 40 and a = 11, find the...Ch. 5 - For a population with a mean of = 100 and a...Ch. 5 - A population has a mean of = 60 and a deviation...Ch. 5 - A sample has a mean of M = 30 and a standard...Ch. 5 - A sample has a mean of M = 25 and a standard...Ch. 5 - Find the z-score corresponding to a score of X =...Ch. 5 - Find the X value corresponding to z = 0.25 for...Ch. 5 - A score that is 6 points below the mean...Ch. 5 - A score that is 9 points above the mean...Ch. 5 - For a population with a standard deviation of =...Ch. 5 - For a sample with a standard deviation of s = 8, a...Ch. 5 - For a sample with a mean of M = 51, a score of X =...Ch. 5 - For a population with a mean of = 70, a score X =...Ch. 5 - In a population distribution, a score of X = 28...Ch. 5 - In a sample distribution, X = 56 corresponds to z...Ch. 5 - For each of the following populations, would a...Ch. 5 - A distribution of exam scores has a mean of = 78....Ch. 5 - For each of the following, identify the exam score...Ch. 5 - A distribution with a mean of = 38 and a standard...Ch. 5 - A distribution with a mean of = 76 and a standard...Ch. 5 - A population consists of the following N = 5...Ch. 5 - A sample consists of the following n = 7 scores:...

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