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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Confidence Intervals

When we calculate intervals in probability and statistics, it can be simply termed as finding out a confidence interval. The confidence interval is usually calculated from the data set which is observed. The value of the parameter that needs to be calcul…

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Textbook Question

Chapter 11, Problem 80CP

Statistical versus practical significance In any significance test, when the sample size is very large, we have not necessarily established an important result when we obtain statistical significance. Explain what this means in the context of analyzing contingency tables with a chi-squared test.

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Chapter 11, Problem 79CP

Chapter 11, Problem 81CP

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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Statistical versus practical significance In any significance test, when the sample size is very large, we have not necessarily established an important result when we obtain statistical significance. Explain what this means in the context of analyzing contingency tables with a chi-squared test.

Solution Summary: The author explains the con of analyzing contingency tables with a chi-squared test.

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Chapter 11 Solutions