Elementary Statistics Picturing The World

Elementary Statistics Picturing The World 7th Edition
Elementary Statistics Picturing The World 5e
Elementary Statistics Picturing The World 7

Title: Elementary Statistics: Picturing The World, 6e Author: Larson/Farber Subject: Statistics Created Date: 2/26/2019 12:11:07 PM. Elementary Statistics: Picturing the World (6th Edition) answers to Chapter 1 - Introduction to Statistics - Section 1.1 An Overview of Statistics - Exercises - Page 6 1 including work step by step written by community members like you. Textbook Authors: Larson, Ron; Farber, Betsy, ISBN-10: 0-32191-121-0, ISBN-13: 978-0-32191-121-6, Publisher: Pearson. Elementary Statistics: Picturing the World makes statistics approachable with stepped-out instruction, extensive real-life examples and exercises, and a design that fits content for each page to make the material more digestible. The text’s combination of theory, pedagogy, and design helps students understand concepts and use statistics to. Textbook solutions for Elementary Statistics: Picturing the World (7th 7th Edition Ron Larson and others in this series. View step-by-step homework solutions for your homework. Ask our subject experts for help answering any of your homework questions!

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Elementary Statistics Picturing The World 7th Edition

Chapter Outline 7. 1 Introduction to Hypothesis Testing 7. 2 Hypothesis Testing for the Mean (σ Known) 7. 3 Hypothesis Testing for the Mean (σ Unknown) 7. 4 Hypothesis Testing for Proportions 7. 5 Hypothesis Testing for Variance and Standard Deviation Copyright © 2015, 2012, 2009 Pearson Education, Inc. All Rights Reserved

z-Test for a Population Proportion • A statistical test for a population proportion. • Can be used when a binomial distribution is given such that np 5 and nq 5. Copyright © 2015, 2012, 2009 Pearson Education, Inc. All Rights Reserved

Using a z-Test for a Proportion p (1 of 2) In Words In Symbols 1. Verify that the sampling distribution np ≥ 5 and nq ≥ 5 of p hat can be approximated by the normal distribution. 2. State the claim mathematically and State H 0 and Ha. verbally. Identify the null and alternative hypotheses. 3. Specify the level of significance. Identify α. 4. Determine the critical value(s). Use Table 5 in Appendix B. Copyright © 2015, 2012, 2009 Pearson Education, Inc. All Rights Reserved

Example 1: Hypothesis Test for a Proportion (1 of 2) A research center claims that less than 50% of U. S. adults have accessed the Internet over a wireless network with a laptop computer. In a random sample of 100 adults, 39% say they have accessed the Internet over a wireless network with a laptop computer. At α = 0. 01, is there enough evidence to support the researcher’s claim? (Adopted from Pew Research Center) Solution • Verify that np ≥ 5 and nq ≥ 5. np = 100(0. 50) = 50 and nq = 100(0. 50) = 50 Copyright © 2015, 2012, 2009 Pearson Education, Inc. All Rights Reserved

Example 1: Hypothesis Test for a Proportion (2 of 2) • Decision: Fail to reject H 0 At the 1% level of significance, there is not enough evidence to support the claim that less than 50% of U. S. adults have accessed the Internet over a wireless network with a laptop computer. Copyright © 2015, 2012, 2009 Pearson Education, Inc. All Rights Reserved

Example 2: Hypothesis Test for a Proportion (1 of 2) • The Research Center claims that 25% of college graduates think a college degree is not worth the cost. You decide to test this claim and ask a random sample of 200 college graduates whether they think a college is not worth the cost. Of those surveyed, 21% reply yes. At α = 0. 10 is there enough evidence to reject the claim? Copyright © 2015, 2012, 2009 Pearson Education, Inc. All Rights Reserved

Example 2: Hypothesis Test for a Proportion (2 of 2) • Decision: Fail to reject H 0 At the 10% level of significance, there is not enough evidence to reject the claim that 25% of college graduates think a college degree is not worth the cost. Copyright © 2015, 2012, 2009 Pearson Education, Inc. All Rights Reserved

About this title

Synopsis:

For courses in Introductory Statistics (algebra-based).

Elementary Statistics Picturing The World 5e

Simplifies statistics through practice and real-world applications

Elementary statistics picturing the world 4th edition

Elementary Statistics: Picturing the Worldmakes statistics approachable with stepped-out instruction, extensive real-life examples and exercises, and a design that fits content for each page to make the material more digestible. The text’s combination of theory, pedagogy, and design helps students understand concepts and use statistics to describe and think about the world.

The 7th Edition incorporates a thorough update of key features, examples, and exercises, as well as robust technology resources that include StatCrunch®, a new Tech Tips feature, and an Integrated Review version of the MyLab Statistics course.

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MyLab™ Statistics is the teaching and learning platform that empowers instructors to reach every student. By combining trusted author content with digital tools and a flexible platform, MyLab Statistics personalizes the learning experience and improves results for each student. With MyLab Statistics and StatCrunch, an integrated web-based statistical software program, students learn the skills they need to interact with data in the real world.

Elementary Statistics Picturing The World 7

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About the Author:

Ron Larson received his Ph.D. in mathematics from the University of Colorado in 1970. At that time he accepted a position with Penn State University, and he currently holds the rank of professor of mathematics at the university. Larson is the lead author of more than two dozen mathematics textbooks that range from 6th grade through calculus levels. Many of his texts, such as the 10th edition of his calculus text, are leaders in their markets. Larson is also one of the pioneers in the use of multimedia and the Internet to enhance the learning of mathematics. He has authored multimedia programs, extending from the elementary school through calculus levels. Larson is a member of several professional groups and is a frequent speaker at national and regional mathematics meetings.

Many thanks to Betsy Farber for her significant contributions to previous editions of the text. Sadly, Betsy passed away in 2013. She received her Bachelor’s degree in mathematics from Penn State University and her Master’s degree in mathematics from the College of New Jersey. Betsy taught all levels of mathematics at Bucks County Community College in Newtown, Pennsylvania for many years. She made many notable contributions throughout her career to developing new ways to make statistics relevant and interesting for both online and traditional students.

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