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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Chapter 14.3, Problem 23PB

Reducing cholesterol An experiment randomly assigns 100 subjects suffering from high cholesterol to one of four groups: low-dose Lipitor, high-dose Lipitor, low-dose Zocor, high-dose Zocor. After three months of treatment, the change in cholesterol level is measured.

a. Identify the response variable and the two factors.
b. What are four treatments that can be compared with this experiment?
c. What comparisons are relevant when we control for dose level?

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Chapter 14.2, Problem 20PB

Chapter 14.3, Problem 24PB

Chapter 14 Solutions

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

Ch. 14.1 - Hotel satisfaction The CEO of a company that owns...Ch. 14.1 - Prob. 2PB Ch. 14.1 - Whats the best way to learn French? The following...Ch. 14.1 - Prob. 4PB Ch. 14.1 - Prob. 5PB Ch. 14.1 - ANOVA and box plots For two studies, each...Ch. 14.1 - Prob. 7PB Ch. 14.1 - Smoking and personality A study about smoking and...Ch. 14.1 - Prob. 9PB Ch. 14.1 - Prob. 10PB

Ch. 14.1 - Prob. 11PB Ch. 14.2 - House prices and age For the House Selling Prices...Ch. 14.2 - Time on Facebook Do freshmen spent significantly...Ch. 14.2 - Prob. 14PB Ch. 14.2 - Tukey holding time comparisons Refer to the...Ch. 14.2 - Prob. 16PB Ch. 14.2 - REM regression Refer to the previous exercise. a....Ch. 14.2 - Prob. 18PB Ch. 14.2 - Regression for outsourcing Refer to the previous...Ch. 14.2 - Advertising effect oil sales Each of 100...Ch. 14.3 - Reducing cholesterol An experiment randomly...Ch. 14.3 - Prob. 24PB Ch. 14.3 - Political ideology in 2014 The GSS measures...Ch. 14.3 - Prob. 26PB Ch. 14.3 - Corn and manure In Example 10, the coefficient of...Ch. 14.3 - Prob. 28PB Ch. 14.3 - Regression for telephone holding times Refer to...Ch. 14.3 - Prob. 30PB Ch. 14.3 - Income by gender and degree In 2012, the...Ch. 14.3 - Prob. 32PB Ch. 14.3 - Attractiveness and getting dates The results in...Ch. 14.3 - Prob. 34PB Ch. 14.3 - Regression of weight gain on diet Refer to the...Ch. 14 - Good friends and marital status Is the number of...Ch. 14 - Prob. 37CP Ch. 14 - Singles watch more TV The 2014 General Social...Ch. 14 - Prob. 39CP Ch. 14 - Prob. 40CP Ch. 14 - Prob. 41CP Ch. 14 - Prob. 42CP Ch. 14 - Prob. 43CP Ch. 14 - Comparing therapies for anorexia The Anorexia data...Ch. 14 - Prob. 45CP Ch. 14 - Prob. 46CP Ch. 14 - Prob. 47CP Ch. 14 - Prob. 48CP Ch. 14 - Prob. 49CP Ch. 14 - Prob. 50CP Ch. 14 - Prob. 51CP Ch. 14 - TV watching by gender and race When we use the...Ch. 14 - Prob. 53CP Ch. 14 - Prob. 54CP Ch. 14 - Prob. 55CP Ch. 14 - Prob. 56CP Ch. 14 - Prob. 57CP Ch. 14 - Prob. 59CP Ch. 14 - Prob. 60CP Ch. 14 - Prob. 61CP Ch. 14 - Prob. 62CP Ch. 14 - Prob. 63CP Ch. 14 - Prob. 64CP Ch. 14 - Prob. 65CP Ch. 14 - Prob. 66CP Ch. 14 - Prob. 67CP Ch. 14 - Prob. 68CP Ch. 14 - Prob. 69CP Ch. 14 - Prob. 70CP Ch. 14 - Prob. 71CP

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Population Genetics In the study of population genetics, an important measure of inbreeding is the proportion of homozygous genotypesthat is, instances in which the two alleles carried at a particular site on an individuals chromosomes are both the same. For population in which blood-related individual mate, them is a higher than expected frequency of homozygous individuals. Examples of such populations include endangered or rare species, selectively bred breeds, and isolated populations. in general. the frequency of homozygous children from mating of blood-related parents is greater than that for children from unrelated parents Measured over a large number of generations, the proportion of heterozygous genotypesthat is, nonhomozygous genotypeschanges by a constant factor 1 from generation to generation. The factor 1 is a number between 0 and 1. If 1=0.75, for example then the proportion of heterozygous individuals in the population decreases by 25 in each generation In this case, after 10 generations, the proportion of heterozygous individuals in the population decreases by 94.37, since 0.7510=0.0563, or 5.63. In other words, 94.37 of the population is homozygous. For specific types of matings, the proportion of heterozygous genotypes can be related to that of previous generations and is found from an equation. For mating between siblings 1 can be determined as the largest value of for which 2=12+14. This equation comes from carefully accounting for the genotypes for the present generation the 2 term in terms of those previous two generations represented by for the parents generation and by the constant term of the grandparents generation. a Find both solutions to the quadratic equation above and identify which is 1 use a horizontal span of 1 to 1 in this exercise and the following exercise. b After 5 generations, what proportion of the population will be homozygous? c After 20 generations, what proportion of the population will be homozygous?

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Introduction to experimental design and analysis of variance (ANOVA); Author: Dr. Bharatendra Rai;https://www.youtube.com/watch?v=vSFo1MwLoxU;License: Standard YouTube License, CC-BY

Solution Summary: The author identifies the response variable and factor in the experiment: Cholesterol levels, dosage level, and type of drug.

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Chapter 14 Solutions