Statistics

Elementary Statistics:A Step By Step Approach

(10E), © 2018Bluman

Perfect for Introductory StatisticsFor students whose mathematical background is limited to algebra, this is the quintessential general statistics text (not intended for AP® Statistics). Elementary Statistics: A Step by Step Approach follows a non-theoretical approach without formal proofs, explaining concepts intuitively and supporting them with abundant examples.

Key Features:• The text ensures relevancy and deepens

conceptual understanding by offering real-life problems for students to solve with data projects, statistics today and critical thinking elements.

• ALEKS® 360 can be paired with Elementary Statistics: A Step by Step Approach to help students master the course content via an individualized learning experience tailored to students’ unique strengths and weaknesses.

ALEKS 360 is a complete course solution that combines personalized assessment and learning with a fully integrated, interactive eBook. The media-rich eBook features highlighting, bookmarking, and note-taking, while the dynamic ALEKS interface allows students to easily navigate their learning, track their progress, and manage their assignments from anywhere. Modern and mobile-ready, ALEKS 360 uses adaptive artificial intelligence to precisely identify what students know and don’t know in order to create individualized learning plans tailored to their unique needs.

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Elementary StatisticsA S T E P B Y S T E P A P P R O A C H

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ALLAN G. BLUMAN

Elementary Statistics

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BLUMANmheducation.com/prek-12

ALEKS 360 is a total course solution that combines the power of ALEKS with a fully-integrated, interactive eBook. Using adaptive artificial intelligence, ALEKS delivers an individualized learning experience tailored to a student’s own strengths and weaknesses. This unique approach to learning dramatically improves student performance and confidence.

With decades of scientific research behind its creation, ALEKS 360 offers the most advanced adaptive learning technology available for Math and Statistics.

For more information and pricing, visit mheonline.com/electives or contact your sales representative.

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Confidence Intervals and Sample Size

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STATISTICS TODAYStress and the College StudentA recent poll conducted by the mtvU/Associated Press found that

85% of college students reported that they experience stress daily.

The study said, “It is clear that being stressed is a fact of life on col-

lege campuses today.”

The study also reports that 74% of students’ stress comes from

school work, 71% from grades, and 62% from financial woes. The

report stated that 2240 undergraduate students were selected and

that the poll has a margin of error of ±3.0%.

In this chapter you will learn how to make a true estimate of a

parameter, what is meant by the margin of error, and whether or not

the sample size was large enough to represent all college students.

See Statistics Today—Revisited at the end of this chapter for

more details.

OUTLINE Introduction

7–1 Confidence Intervals for the Mean When σ Is Known

7–2 Confidence Intervals for the Mean When σ Is Unknown

7–3 Confidence Intervals and Sample Size for Proportions

7–4 Confidence Intervals for Variances and Standard Deviations

Summary

OBJECTIVESAfter completing this chapter, you should be able to:

Find the confidence interval for the mean when σ is known.

Determine the minimum sample size for finding a confidence interval for the mean.

Find the confidence interval for the mean when σ is unknown.

Find the confidence interval for a proportion.

Determine the minimum sample size for finding a confidence interval for a proportion.

Find a confidence interval for a variance and a standard deviation.

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CONFIRMING PAGES

Statistics

TABLE OF CONTENTS

CHAPTER 1 The Nature of Probability and Statistics

CHAPTER 2 Frequency Distributions and Graphs

CHAPTER 3 Data Description

CHAPTER 4 Probability and Counting Rules

CHAPTER 5 Discrete Probability Distributions

CHAPTER 6 The Normal Distribution

CHAPTER 7 Confidence Intervals and Sample Size

CHAPTER 8 Hypothesis Testing

CHAPTER 9 Testing the Difference Between Two Means, Two Variances, and Two Proportions

CHAPTER 10 Correlation and Regression

CHAPTER 11 Other Chi-Square Tests

CHAPTER 12 Analysis of Variance

CHAPTER 13 Nonparametric Statistics

CHAPTER 14 Sampling and Simulation

CALL US TO LEARN MORE! 1-800-334-7344

ISBN LIST

AP16 M 09341

ALSO AVAILABLE FOR MATH

Math in Our World (3e) © 2015

by David Sobecki & Allan Bluman

College Algebra

© 2017

by Julie Miller

Precalculus

© 2017

by Julie Miller

College Algebra & Trigonometry

© 2017

by Julie Miller

6-Year ALEKS® 360 Student Bundle (Student Edition with ALEKS® 360). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .978-0-07-897105-1

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Note: 1-year ISBN bundles are available on the AP®, Honors, and Electives price list.

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