Solution Manual ELEMENTARY STATISTICS: PICTURING THE WORLD SIXTH EDITION By Ron Larson ,Betsy Farber 2023| Complete Guide A+
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SOLUTION MANUAL ELEMENTARY
STATISTICS: PICTURING THE WORLD SIXTH
EDITION BY RON
LARSON ,BETSY FARBER 2024| COMPLETE
GUIDE
, INSTRUCTOR’S
SOLUTIONS MANUAL
NANCY S. BOUDREAU AND JAY SCHAFFER
ELEMENTARY S TATISTICS :
PICTURING THE WORLD
SIXTH E DITION
Ron Larson
Pennsylvania State University
Betsy Farber
Bucks County Community College
Boston Columbus Indianapolis New York San Francisco Upper Saddle River
Amsterdam Cape Town Dubai London Madrid Milan Munich Paris Montreal Toronto
Delhi Mexico City São Paulo Sydney Hong Kong Seoul Singapore Taipei Tokyo
,CONTENTS
CONTENTS
Chapter 1 Introduction to Statistics 1
Chapter 2 Descriptive Statistics 15
Chapter 3 Probability 103
Chapter 4 Discrete Probability Distributions 134
Chapter 5 Normal Probability Distributions 163
Chapter 6 Confidence Intervals 212
Chapter 7 Hypothesis Testing with One Sample 237
Chapter 8 Hypothesis Testing with Two Samples 281
Chapter 9 Correlation and Regression 322
Chapter 10 Chi-Square Tests and the F-Distribution 369
Chapter 11 Nonparametric Tests 419
Appendix A Alternative Presentation of the Standard 464
Normal Distribution
Appendix C Normal Probability Plots and Their 465
Graphs
Activities 467
Case Studies 471
Uses and Abuses 491
Real Statistics−Real Decisions 495
Technology 505
, CHAPTER
Introduction to Statistics
1
1.1 AN OVERVIEW OF STATISTICS
1.1 Try It Yourself Solutions
1a. The population consists of the prices per gallon of regular gasoline at all gasoline stations in the
United States. The sample consists of the prices per gallon of regular gasoline at the 800 surveyed
stations.
b. The data set consists of the 800 prices.
2a. Because the numerical measure of $5,150,694 is based on the entire collection of employee’s
salaries, it is from a population.
b. Because the numerical measure is a characteristic of a population, it is a parameter.
3a. Descriptive statistics involve the statement ―31% support their kids financially until they graduate
college and 6% provide financial support until they start college.‖
b. An inference drawn from the survey is that a higher percentage of parents support their kids
financially until they graduate college.
1.1 EXERCISE SOLUTIONS
1. A sample is a subset of a population.
2. It is usually impractical (too expensive and/or time consuming) to obtain all the population data.
3. A parameter is a numerical description of a population characteristic. A statistic is a numerical
description of a sample characteristic.
4. The two main branches of statistics are descriptive statistics and inferential statistics.
5. False. A statistic is a numerical measure that describes a sample characteristic.
6. True
7. True
8. False. Inferential statistics involves using a sample to draw conclusions about a population.
9. False. A population is the collection of all outcomes, responses, measurements, or counts that are
of interest.
10. False. A sample statistic can differ from sample to sample.
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