Student Solutions Manual for Brase/Brase's Understanding Basic Statistics, 7th

7th Edition

ISBN: 9781305258792

Author: BRASE, Charles Henry

Publisher: Cengage Learning

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Chapter 11.3, Problem 4P

For Problems 3-11, please provide the following information.

(a) What is the level of significance? State the null and alternate hypotheses.

(b) Find the value of the chi-square statistic for the sample. What are the degrees of freedom? What assumptions are you making about the original distribution?

(d) Based on your answers in parts (a) to (c), will you reject or fail to reject the null hypothesis of independence?

(e) Interpret your conclusion in the context of the application.

In each of the following problems, assume a normal populationdistribution.

Sociology: Marriage The following problem is based on information from an article by N. Keyfitz in the American Journal of Sociology (Vol. 53. pp. 470-480). Let x = age in years of a rural Quebec woman at the time of her first marriage. In the year 1941, the population variance of x was approximately σ 2 = 5.1. Suppose a recent study of age at first marriage for a random sample of 41 women in rural Quebec gave a sample variance s 2 = 3.3 . Use a 5 % level of significance to test the claim that the current variance is less than 5.1.

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Chapter 11.3, Problem 3P

Chapter 11.3, Problem 5P

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NC Current Students - North Ce X | NC Canvas Login Links - North ( X Final Exam Comprehensive x Cengage Learning x WASTAT - Final Exam - STAT → C webassign.net/web/Student/Assignment-Responses/submit?dep=36055360&tags=autosave#question3659890_9 Part (b) Draw a scatter plot of the ordered pairs. N Life Expectancy Life Expectancy 80 70 600 50 40 30 20 10 Year of 1950 1970 1990 2010 Birth O Life Expectancy Part (c) 800 70 60 50 40 30 20 10 1950 1970 1990 W ALT 林 $ # 4 R J7 Year of 2010 Birth F6 4+ 80 70 60 50 40 30 20 10 Year of 1950 1970 1990 2010 Birth Life Expectancy Ox 800 70 60 50 40 30 20 10 Year of 1950 1970 1990 2010 Birth hp P.B. KA & 7 80 % 5 H A B F10 711 N M K 744 PRT SC ALT CTRL

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Chapter 11 Solutions

Student Solutions Manual for Brase/Brase's Understanding Basic Statistics, 7th

Ch. 11.1 - Statistical Literacy In general, are chi-square...Ch. 11.1 - Statistical Literacy For chi-square distributions,...Ch. 11.1 - Statistical Literacy For chi-square tests of...Ch. 11.1 - Critical thinking In general, how do the...Ch. 11.1 - Critical Thinking Zane is interested in the...Ch. 11.1 - Critical Thinking Charlotte is doing a study on...Ch. 11.1 - Interpretation: Test of Homogeneity Consider...Ch. 11.1 - Interpretation: Test of Independence Consider...Ch. 11.1 - For Problems 9-19. please provide the following...Ch. 11.1 - For Problems 9-19, please provide the following...

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Solution Summary: The author explains how to determine the level of significance and state the null and alternative hypotheses.

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Chapter 11 Solutions