Introductory Statistics (10th Edition)
Introductory Statistics (10th Edition)
10th Edition
ISBN: 9780321989178
Author: Neil A. Weiss
Publisher: PEARSON
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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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Chapter 12.3, Problem 95E

Explain the basic idea for performing a hypothesis test, based on independent samples, to compare two population proportions.

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Chapter 12 Solutions

Introductory Statistics (10th Edition)

Ch. 12.1 - Why is statistical inference generally used to...Ch. 12.1 - Prob. 3ECh. 12.1 - Prob. 4ECh. 12.1 - Regarding a sample proportion: a. What is it? b....Ch. 12.1 - Regarding the phrase number of successes: a. For...Ch. 12.1 - For what is the phrase number of failures an...Ch. 12.1 - Explain the relationships among the sample...Ch. 12.1 - Prob. 9ECh. 12.1 - Repeat parts (b)(e) of Exercise 12.9 for samples...Ch. 12.1 - Prob. 11E
Ch. 12.1 - Prob. 12ECh. 12.1 - Prob. 13ECh. 12.1 - Prob. 14ECh. 12.1 - Prob. 15ECh. 12.1 - Prob. 16ECh. 12.1 - Random Drug Testing. A Harris Poll asked Americans...Ch. 12.1 - Genetic Binge Eating. According to an article in...Ch. 12.1 - In each of Exercises 12.251230, we have given the...Ch. 12.1 - In each of Exercises 12.251230, we have given the...Ch. 12.1 - In each of Exercises 12.251230, we have given the...Ch. 12.1 - In each of Exercises 12.2512.30, we have given the...Ch. 12.1 - In each of Exercises 12.2512.30, we have given the...Ch. 12.1 - Prob. 30ECh. 12.1 - Prob. 31ECh. 12.1 - Prob. 32ECh. 12.1 - In each of Exercises 12.3112.36, we have specified...Ch. 12.1 - Prob. 34ECh. 12.1 - Prob. 35ECh. 12.1 - Prob. 36ECh. 12.1 - Prob. 37ECh. 12.1 - In Exercises 12.3712.42, we have specified the...Ch. 12.1 - Prob. 39ECh. 12.1 - Prob. 40ECh. 12.1 - Prob. 41ECh. 12.1 - Prob. 42ECh. 12.1 - Prob. 43ECh. 12.1 - In each of Exercises 12.4312.48, we have specified...Ch. 12.1 - Prob. 45ECh. 12.1 - In each of Exercises 12.4312.48, we have specified...Ch. 12.1 - In each of Exercises 12.4312.48, we have specified...Ch. 12.1 - In each of Exercises 12.4312.48, we have specified...Ch. 12.1 - In Exercises 12.4912.54, use Procedure 12.1 on...Ch. 12.1 - In Exercises 12.4912.54, use Procedure 12.1 on...Ch. 12.1 - In Exercises 12.4912.54, use Procedure 12.1 on...Ch. 12.1 - In Exercises 12.4912.54, use Procedure 12.1 on...Ch. 12.1 - Prob. 53ECh. 12.1 - The Nipah Virus. During one year, Malaysia was the...Ch. 12.1 - Literate Adults. Suppose that you have been hired...Ch. 12.1 - IMR in Singapore. The infant mortality rate (IMR)...Ch. 12.1 - Prob. 57ECh. 12.1 - Prob. 58ECh. 12.1 - Asthmatics and Sulfites. Refer to Exercise 12.51. ...Ch. 12.1 - Drinking Habits. Refer to Exercise 12.52. a. Find...Ch. 12.1 - Factory Far mini; Funk. Refer to Exercise 12.53. ...Ch. 12.1 - The Nipah Virus. Refer to Exercise 12.54. a. Find...Ch. 12.1 - Product Response Rate. A company manufactures...Ch. 12.1 - Prob. 64ECh. 12.1 - President's Job Rating. A poll conducted by Gallup...Ch. 12.1 - Prob. 66ECh. 12.1 - In discussing the sample size required for...Ch. 12.1 - Prob. 68ECh. 12.1 - Prob. 69ECh. 12.1 - Prob. 70ECh. 12.1 - Prob. 71ECh. 12.1 - Prob. 72ECh. 12.1 - Prob. 73ECh. 12.1 - Prob. 74ECh. 12.1 - Prob. 75ECh. 12.1 - In each of Exercises 12.7512.78, use the...Ch. 12.1 - In each of Exercises 12.7512.78, use the...Ch. 12.1 - In each of Exercises 12.7512.78, use the...Ch. 12.2 - In each of Exercises 12.7912.84, we have given the...Ch. 12.2 - In each of Exercises 12.7912.84, we have given the...Ch. 12.2 - In each of Exercises 12.7912.84, we have given the...Ch. 12.2 - In each of Exercises 12.7912.84, we have given the...Ch. 12.2 - In each of Exercises 12.7912.84, we have given the...Ch. 12.2 - In each of Exercises 12.7912.84, we have given the...Ch. 12.2 - In Exercises 12.8512.94, use Procedure 12.2 on...Ch. 12.2 - In Exercises 12.8512.94, use Procedure 12.2 on...Ch. 12.2 - In Exercises 12.8512.94, use Procedure 12.2 on...Ch. 12.2 - In Exercises 12.8512.94, use Procedure 12.2 on...Ch. 12.2 - In Exercises 12.8512.94, use Procedure 12.2 on...Ch. 12.2 - In Exercises 12.8512.94, use Procedure 12.2 on...Ch. 12.2 - In Exercises 12.852.94, use Procedure 12.2 on page...Ch. 12.2 - In Exercises 12.8512.94, use Procedure 12.2 on...Ch. 12.2 - In Exercises 12.8512.94, use Procedure 12.2 on...Ch. 12.2 - Prob. 94ECh. 12.3 - Explain the basic idea for performing a hypothesis...Ch. 12.3 - Prob. 96ECh. 12.3 - Sunscreen Use. Industry Research polled teenagers...Ch. 12.3 - Consider a hypothesis test for two population...Ch. 12.3 - Prob. 99ECh. 12.3 - In each of Exercises 12.10012.105, we have...Ch. 12.3 - Prob. 101ECh. 12.3 - Prob. 102ECh. 12.3 - In each of Exercises 12.10012.105, we have...Ch. 12.3 - In each of Exercises 12.10012.105, we have...Ch. 12.3 - In each of Exercises 12.10012.105, we have...Ch. 12.3 - In Exercises 12.10612.111, use either the...Ch. 12.3 - Prob. 107ECh. 12.3 - In Exercises 12.10612.111, use either the...Ch. 12.3 - In Exercises 12.10612.111, use either the...Ch. 12.3 - In Exercises 12.10612.111, use either the...Ch. 12.3 - Prob. 111ECh. 12.3 - Prob. 112ECh. 12.3 - Prob. 113ECh. 12.3 - Prob. 114ECh. 12.3 - Prob. 115ECh. 12.3 - Prob. 116ECh. 12.3 - Prob. 117ECh. 12.3 - Hormone Therapy and Dementia. An issue of Science...Ch. 12.3 - Women in the Labor Force. The Organization for...Ch. 12.3 - Neutropenia. Neutropenia is an abnormally low...Ch. 12.3 - Prob. 121ECh. 12.3 - Prob. 122ECh. 12.3 - Prob. 123ECh. 12.3 - Prob. 124ECh. 12.3 - In each of Exercises 12.12212.127, we have given...Ch. 12.3 - Prob. 126ECh. 12.3 - Prob. 127ECh. 12.3 - In each of Exercises 12.12812.131, use the...Ch. 12.3 - Prob. 129ECh. 12.3 - Federal Gas Tax. The Quinnipiac University Poll...Ch. 12.3 - Blockers and Cancer. A Wall Street Journal...Ch. 12.3 - Prob. 132ECh. 12.3 - Prob. 133ECh. 12.3 - Prob. 134ECh. 12.3 - Prob. 135ECh. 12.3 - Eating Out Vegetarian. Refer to the study on...Ch. 12.3 - Eating Out Vegetarian. Repeal Exercise 12.136 by...Ch. 12 - Medical Marijuana? An international poll of...Ch. 12 - Prob. 2RPCh. 12 - Prob. 3RPCh. 12 - Fill in the blanks. a. The mean of all possible...Ch. 12 - Prob. 5RPCh. 12 - Prob. 6RPCh. 12 - Suppose that you are using independent samples to...Ch. 12 - Prob. 8RPCh. 12 - Prob. 9RPCh. 12 - Getting a Job. Refer to Problem 9. a. Determine a...Ch. 12 - Justice in the Courts? In an issue of Parade...Ch. 12 - Prob. 12RPCh. 12 - Small phone Ownership. The Pew Internet American...Ch. 12 - Smartphone Ownership. Refer to Problem 13. a. Find...Ch. 12 - Bulletproof Vests. In the New York Times article A...Ch. 12 - Recall from Chapter 1 (see page 34) that the Focus...Ch. 12 - As you learned on page 544, recent research by R....
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