3rd Edition

ISBN: 9780135190210

Author: Gould

Publisher: PEARSON CO

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A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

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Textbook Question

Chapter 6, Problem 27SE

Boys’ Foot Length (Example 6) According to the Digital Human Modeling Project, the distribution of foot lengths of 16-to 17-year-old boys is approximately Normal with a mean of 25.2 centimeters and a standard deviation of 1.2 centimeters. In the United States, a man’s size 11 shoe fits a foot that is 27.9 centimeters long. What percentage of boys of this age group will wear a size 11 shoe or larger? See page 316 for guidance.

Features Features Normal distribution is characterized by two parameters, mean (µ) and standard deviation (σ). When graphed, the mean represents the center of the bell curve and the graph is perfectly symmetric about the center. The mean, median, and mode are all equal for a normal distribution. The standard deviation measures the data's spread from the center. The higher the standard deviation, the more the data is spread out and the flatter the bell curve looks. Variance is another commonly used measure of the spread of the distribution and is equal to the square of the standard deviation.

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Chapter 6, Problem 26SE

Chapter 6, Problem 28SE

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Chapter 6 Solutions

EP INTRODUCTORY STATISTICS-MYSTATLAB

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Solution Summary: The author explains how to determine the percentage of boys who wear a shoe size 11 or larger.

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