Statistics: The Art and Science of Learning from Data (4th Edition)

4th Edition

ISBN: 9780321997838

Author: Alan Agresti, Christine A. Franklin, Bernhard Klingenberg

Publisher: PEARSON

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Types of Bias

Statistics is the study of data collection, organization, analysis, interpretation, and presentation. Statistical bias is a characteristic of a statistical technique or its findings in which the expected value deviates from the actual root quantitative p…

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Chapter 11.2, Problem 15PB

Help the environment In 2010 the GSS asked whether a subject was willing to accept cuts in the standard of living to help the environment (GRNSOL), with categories (vw = very willing, fw = fairly willing, nwu = neither willing nor unwilling, nvw = not very willing, nw = not at all willing). When this was cross-tabulated with whether the respondent is currently in school or has retired (WORKSTAT), as shown below, X² = 9.56.

a. What are the hypotheses for the test to which X² refers?
b. Report r and c and the df value on which X² is based.
c. Is the P-value less than (i) 0.05? (ii) 0.025? Explain.
d. What conclusion would you make, using a significance level of (i) 0.05 and (ii) 0.025? State your conclusion in the context of this study.

Chapter 11.2, Problem 15PB, Help the environment In 2010 the GSS asked whether a subject was willing to accept cuts in the

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Chapter 11.2, Problem 14PB

Chapter 11.2, Problem 16PB

Chapter 11 Solutions

Statistics: The Art and Science of Learning from Data (4th Edition)

Ch. 11.1 - Gender gap in politics? In the United States, is...Ch. 11.1 - Prob. 2PB Ch. 11.1 - Williams College admission Data from 2013 posted...Ch. 11.1 - Prob. 4PB Ch. 11.1 - Marital happiness and income In the GSS, subjects...Ch. 11.1 - What is independent of happiness? Which one of the...Ch. 11.1 - Sample evidence about independence Refer to the...Ch. 11.2 - Life after death and gender In the 2012 GSS, 605...Ch. 11.2 - Happiness and gender For the 2 3 table on gender...Ch. 11.2 - Prob. 10PB

Ch. 11.2 - Marital happiness and income In Exercise 11.5 when...Ch. 11.2 - First and second free throw independent? In pro...Ch. 11.2 - Cigarettes and marijuana The table on the...Ch. 11.2 - Prob. 14PB Ch. 11.2 - Help the environment In 2010 the GSS asked whether...Ch. 11.2 - Prob. 16PB Ch. 11.2 - Aspirin and heart attacks A Swedish study used...Ch. 11.2 - z test for heart attack study Refer to the...Ch. 11.2 - Severity of fever after flu shot The study...Ch. 11.2 - Prob. 20PB Ch. 11.2 - Testing a genetic theory In an experiment on...Ch. 11.2 - Birthdays by quarters Based on a random sample of...Ch. 11.2 - Checking a roulette wheel Karl Pearson devised the...Ch. 11.3 - Democrat, race, and gender The two tables show...Ch. 11.3 - Death penalty associations Table 11.10, summarized...Ch. 11.3 - Smoking and alcohol The table refers to a survey...Ch. 11.3 - Sex of victim and offender For murders in the...Ch. 11.3 - Smelling and mortality A recent study (Pinto et...Ch. 11.3 - Vioxx In September 2004, the pharmaceutical...Ch. 11.3 - Egg and cell derived vaccine When comparing the...Ch. 11.3 - Risk of dying for teenagers According to...Ch. 11.3 - Marital happiness The table shows 2012 GSS data on...Ch. 11.3 - Party ID and gender The table shows the 2012 GSS...Ch. 11.3 - Chi-squared versus measuring association For the...Ch. 11.4 - Standardized residuals for happiness and income...Ch. 11.4 - Prob. 36PB Ch. 11.4 - Prob. 37PB Ch. 11.4 - Prob. 38PB Ch. 11.4 - Prob. 39PB Ch. 11.4 - Prob. 40PB Ch. 11.5 - Keeping old dogs mentally sharp In an experiment...Ch. 11.5 - Prob. 43PB Ch. 11.5 - Prob. 44PB Ch. 11.5 - Prob. 46PB Ch. 11 - Female for president? When recent General Social...Ch. 11 - Prob. 48CP Ch. 11 - Down and chi-squared For the data in the previous...Ch. 11 - Prob. 50CP Ch. 11 - Prob. 51CP Ch. 11 - Prob. 52CP Ch. 11 - Prob. 53CP Ch. 11 - Prob. 54CP Ch. 11 - Prob. 55CP Ch. 11 - Prob. 56CP Ch. 11 - Seat belt helps? The table refers to passengers in...Ch. 11 - Prob. 58CP Ch. 11 - Prob. 59CP Ch. 11 - Prob. 60CP Ch. 11 - Prob. 61CP Ch. 11 - Prob. 62CP Ch. 11 - Prob. 63CP Ch. 11 - Prob. 64CP Ch. 11 - Clarity of diamonds Does the clarity of a diamond...Ch. 11 - Benfords Law When looking at a collection of...Ch. 11 - Prob. 67CP Ch. 11 - Prob. 68CP Ch. 11 - Prob. 70CP Ch. 11 - Prob. 71CP Ch. 11 - Prob. 72CP Ch. 11 - Prob. 73CP Ch. 11 - Prob. 74CP Ch. 11 - Prob. 75CP Ch. 11 - Prob. 76CP Ch. 11 - Prob. 77CP Ch. 11 - Prob. 78CP Ch. 11 - Prob. 79CP Ch. 11 - Statistical versus practical significance In any...Ch. 11 - Prob. 81CP Ch. 11 - Multiple response variables Each subject in a...Ch. 11 - Standardized residuals for 2 2 tables The table...Ch. 11 - Prob. 84CP Ch. 11 - Prob. 85CP Ch. 11 - Prob. 86CP Ch. 11 - Prob. 87CP Ch. 11 - Prob. 88CP Ch. 11 - Voting with 16 A recent survey of Austrian high...

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Solution Summary: The author states the hypotheses for the test to which chi 2 refers: Willingness to accept cuts in the standard of living to help the environment.

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Chapter 11 Solutions