Farber and Larson’s Elementary Statistics: Picturing the World 7th edition (PDF) makes stats extremely friendly with stepped-out guideline, excellent and comprehensive genuine-life examples and workouts, and a style that fits material for each and every page to make the product a. This package includes MyLab Statistics. Describing the world through statistics Elementary Statistics: Picturing the World makes statistics approachable with stepped-out instruction, extensive real-life examples and exercises, and a design that fits content to each page to make the material more digestible. Welcome to Elementary Statistics: Picturing the World, Seventh Edition. You will find that this textbook is written with a balance ®® ®., and. Annotated Instructor’s Edition. Simplifies statistics through practice and real-world applications 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. Elementary Statistics: Picturing the World 7th Edition Test Bank is not a textbook, instead, this is a test bank or solution manual as indicated on the product title. Test Bank: This is a supplement to the textbook created by experts to help you with your exams. It is a collection of exam questions based on the textbook, just like the ones you.

1. Elementary Statistics Picturing The World 5th Edition
2. Elementary Statistics Picturing The World 6e
3. Elementary Statistics Picturing The World 3rd Edition

Description

Author(s): Ron Larson, Betsy Farber

Publisher: Pearson, Year: 2014

ISBN: 0321911210,9780321911216

Statistics opens a window to the modern world, and this market-leading text makes it easy to understand! Larson and Farber?s Elementary Statistics: Picturing the World, Sixth Edition, provides stepped out instruction, real-life examples and exercises, and the use of technology to offer the most accessible approach. The authors carefully develop theory through strong pedagogy, and examples show how statistics is used to picture and describe the world. In keeping with the premise that students learn best by doing, it includes more than 210 examples and more than 2300 exercises, to make the concepts of statistics a part of students? everyday lives.

• Slides: 12

Elementary Statistics: Picturing The World Sixth Edition Chapter 7 Hypothesis Testing with One Sample Copyright © 2015, 2012, 2009 Pearson Education, Inc. All Rights Reserved

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

Section 7. 4 Hypothesis Testing for Proportions Copyright © 2015, 2012, 2009 Pearson Education, Inc. All Rights Reserved

Section 7. 4 Objectives • How to use the z-test to test a population proportion p 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

Using a z-Test for a Proportion p (2 of 2) 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

Elementary Statistics Picturing The World 5th Edition

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

Elementary Statistics Picturing The World 6e

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

Elementary Statistics Picturing The World 3rd Edition

Section 7. 4 Summary • Used the z-test to test a population proportion p Copyright © 2015, 2012, 2009 Pearson Education, Inc. All Rights Reserved