Elementary Statistics: A Step By Step Approach

10th Edition

ISBN: 9781259755330

Author: Allan G. Bluman

Publisher: McGraw-Hill Education

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2-Proportion Test

In a 2-proportion test, two separate proportions are measured at the same time, and their similarity is evaluated. It is also known as a 2-proportion z-test, and a comparison of two different proportions is done in this method.

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Textbook Question

Chapter 13.2, Problem 9E

Externships Fifty undergraduate students were randomly selected, and 31 favored a summer externship be provided in their major field of study. At α = 0.05 test the hypothesis that more than 50% of the students favor summer externships for their major field of study.

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Chapter 13.2, Problem 8E

Chapter 13.2, Problem 10E

Chapter 13 Solutions

Elementary Statistics: A Step By Step Approach

Ch. 13.1 - The following table lists the percentages of...Ch. 13.1 - Exercises 131 1. What is meant by nonparametric...Ch. 13.1 - When should nonparametric statistics be used?Ch. 13.1 - Prob. 3E Ch. 13.1 - List the disadvantages of nonparametric...Ch. 13.1 - Prob. 5E Ch. 13.1 - Explain what is meant by the efficiency of a...Ch. 13.1 - Prob. 7E Ch. 13.1 - For Exercises 7 through 12, rank each set of data....Ch. 13.1 - For Exercises 7 through 12, rank each set of data....

Ch. 13.1 - Prob. 10E Ch. 13.1 - Prob. 11E Ch. 13.1 - Prob. 12E Ch. 13.2 - Clean Air An environmentalist suggests that the...Ch. 13.2 - Exercises 132 1. Why is the sign test the simplest...Ch. 13.2 - Prob. 2E Ch. 13.2 - Prob. 3E Ch. 13.2 - Prob. 4E Ch. 13.2 - For Exercises 5 through 20, perform these steps....Ch. 13.2 - Prob. 6E Ch. 13.2 - AID: 1825 | 12/01/2018 7. Annual Incomes for Men...Ch. 13.2 - Weekly Earnings of Women According to the Womens...Ch. 13.2 - Externships Fifty undergraduate students were...Ch. 13.2 - Lottery Ticket Sales A lottery outlet owner...Ch. 13.2 - Prob. 11E Ch. 13.2 - Deaths due to Severe Weather A meteorologist...Ch. 13.2 - Prob. 13E Ch. 13.2 - Television Viewers A researcher read that the...Ch. 13.2 - Prob. 15E Ch. 13.2 - Exam Scores A statistics professor wants to...Ch. 13.2 - Prob. 17E Ch. 13.2 - Effects of a Pill on Appetite A researcher wishes...Ch. 13.2 - Prob. 19E Ch. 13.2 - Routine Maintenance and Defective Parts A...Ch. 13.2 - Prob. 21EC Ch. 13.2 - Prob. 22EC Ch. 13.2 - Prob. 23EC Ch. 13.2 - 1, 8, 2, 6, 10, 15, 24, 33, 56, 41, 58, 54, 5, 3,...Ch. 13.2 - Prob. 25EC Ch. 13.3 - School Lunch A nutritionist decided to see if...Ch. 13.3 - Prob. 1E Ch. 13.3 - What is the parametric equivalent test for the...Ch. 13.3 - Prob. 3E Ch. 13.3 - Lengths of Prison Sentences A random sample of men...Ch. 13.3 - Prob. 5E Ch. 13.3 - Lifetimes of Handheld Video Games To test the...Ch. 13.3 - Prob. 7E Ch. 13.3 - Winning Baseball Games For the years 19701993 the...Ch. 13.3 - Prob. 9E Ch. 13.3 - Medical School Enrollments Random samples of...Ch. 13.3 - Prob. 11E Ch. 13.3 - Student Participation in a Blood Drive Students in...Ch. 13.4 - Pain Medication A researcher decides to see how...Ch. 13.4 - Prob. 1E Ch. 13.4 - Prob. 2E Ch. 13.4 - Prob. 3E Ch. 13.4 - For Exercises 3 and 4, find the sum of the signed...Ch. 13.4 - Prob. 5E Ch. 13.4 - Prob. 6E Ch. 13.4 - Prob. 7E Ch. 13.4 - Prob. 8E Ch. 13.4 - Prob. 9E Ch. 13.4 - For Exercises 914, use the Wilcoxon signed-rank...Ch. 13.4 - Prob. 11E Ch. 13.4 - For Exercises 914, use the Wilcoxon signed-rank...Ch. 13.4 - Prob. 13E Ch. 13.4 - For Exercises 914, use the Wilcoxon signed-rank...Ch. 13.5 - Prob. 1AC Ch. 13.5 - Prob. 1E Ch. 13.5 - For Exercises 1 through 12, use the Kruskal-Wallis...Ch. 13.5 - Prob. 3E Ch. 13.5 - For Exercises 1 through 12, use the Kruskal-Wallis...Ch. 13.5 - Prob. 5E Ch. 13.5 - For Exercises 1 through 12, use the Kruskal-Wallis...Ch. 13.5 - Prob. 7E Ch. 13.5 - For Exercises 1 through 12, use the Kruskal-Wallis...Ch. 13.5 - Prob. 9E Ch. 13.5 - For Exercises 1 through 12, use the Kruskal-Wallis...Ch. 13.5 - Prob. 11E Ch. 13.5 - For Exercises 1 through 12, use the Kruskal-Wallis...Ch. 13.6 - Tall Trees As a biologist, you wish to see if...Ch. 13.6 - Prob. 1E Ch. 13.6 - Prob. 2E Ch. 13.6 - Prob. 3E Ch. 13.6 - Prob. 4E Ch. 13.6 - Prob. 5E Ch. 13.6 - For Exercises 5 through 14, perform these steps....Ch. 13.6 - Prob. 7E Ch. 13.6 - For Exercises 5 through 14, perform these steps....Ch. 13.6 - Prob. 9E Ch. 13.6 - Prob. 10E Ch. 13.6 - Prob. 11E Ch. 13.6 - For Exercises 5 through 14, perform these steps....Ch. 13.6 - Prob. 13E Ch. 13.6 - For Exercises 5 through 14, perform these steps....Ch. 13.6 - Prob. 15E Ch. 13.6 - Daily Lottery Numbers Listed below are the daily...Ch. 13.6 - Prob. 17E Ch. 13.6 - Random Numbers Random? A calculator generated...Ch. 13.6 - Prob. 19E Ch. 13.6 - Gender of Shoppers Twenty shoppers are in a...Ch. 13.6 - Employee Absences A supervisor records the number...Ch. 13.6 - Skiing Conditions A ski lodge manager observes the...Ch. 13.6 - Prob. 23E Ch. 13.6 - Prob. 25E Ch. 13.6 - Speeding Tickets A police chief records the gender...Ch. 13.6 - Prob. 27E Ch. 13.6 - Prob. 28E Ch. 13.6 - Prob. 29EC Ch. 13.6 - Prob. 30EC Ch. 13.6 - Prob. 31EC Ch. 13.6 - Prob. 32EC Ch. 13.6 - Prob. 33EC Ch. 13 - For Exercises 1 through 13, follow this procedure:...Ch. 13 - Prob. 13.2.2RE Ch. 13 - Prob. 13.2.3RE Ch. 13 - Record High Temperatures Shown here are the record...Ch. 13 - Hours Worked by Student Employees Student...Ch. 13 - Prob. 13.4.6RE Ch. 13 - Prob. 13.4.7RE Ch. 13 - Prob. 13.5.8RE Ch. 13 - Prob. 13.5.9RE Ch. 13 - Prob. 13.6.10RE Ch. 13 - Prob. 13.6.11RE Ch. 13 - NBA Scoring Leaders The scoring leaders for the...Ch. 13 - Prob. 13.6.13RE Ch. 13 - Prob. 13.6.14RE Ch. 13 - Prob. 1DA Ch. 13 - Prob. 2DA Ch. 13 - Prob. 3DA Ch. 13 - Determine whether each statement is true or false....Ch. 13 - Prob. 2CQ Ch. 13 - Determine whether each statement is true or false....Ch. 13 - Determine whether each statement is true or false....Ch. 13 - Prob. 5CQ Ch. 13 - Prob. 6CQ Ch. 13 - Prob. 7CQ Ch. 13 - Prob. 8CQ Ch. 13 - Prob. 9CQ Ch. 13 - Prob. 10CQ Ch. 13 - Prob. 11CQ Ch. 13 - Complete the following statements with the best...Ch. 13 - Prob. 13CQ Ch. 13 - Prob. 14CQ Ch. 13 - Prob. 15CQ Ch. 13 - Prob. 16CQ Ch. 13 - Textbook Costs Samples of students majoring in law...Ch. 13 - Prob. 18CQ Ch. 13 - Prob. 19CQ Ch. 13 - Prob. 20CQ Ch. 13 - Prob. 21CQ Ch. 13 - Prob. 22CQ Ch. 13 - Prob. 23CQ Ch. 13 - Prob. 24CQ Ch. 13 - Prob. 25CQ Ch. 13 - Prob. 26CQ

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Externships Fifty undergraduate students were randomly selected, and 31 favored a summer externship be provided in their major field of study. At α = 0.05 test the hypothesis that more than 50% of the students favor summer externships for their major field of study.

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Chapter 13 Solutions

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