Introductory Statistics (10th Edition)
10th Edition
ISBN: 9780321989178
Author: Neil A. Weiss
Publisher: PEARSON
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Textbook Question
Chapter 12, Problem 1RP
Medical Marijuana? An international poll of physicians was conducted on the New England Journal of Medicine website asking “Do you believe that the overall medicinal benefits of marijuana outweigh the risks and potential harms?” Identify the
- a. specified attribute.
- b. population.
- c. population proportion.
- d. Of the 1446 physicians who responded, 76% said yes. Is the proportion 0.76 (76%) a sample proportion or a population proportion? Explain your answer.
a.
Expert Solution
To determine
Identify the specified attribute.
Explanation of Solution
Given info:
In a poll conducted on the physicians which askedabout“Do you believe that the overall medicinal benefits of marijuana out-weigh the risks and potential harms”.
Justification:
From the information, it is observed that the study is about the medicinal benefits of marijuana. Therefore, the feeling that the overall medicinal benefits of marijuana out-weigh the risks and potential harms is considered as specified attribute.
b.
Expert Solution
To determine
Identify the population.
Answer to Problem 1RP
The population is all international physicians.
Explanation of Solution
Justification:
Population:
Population consists of the complete subjects that are included in the study for making inferences.
From the information, it is observed that the study is about the medicinal benefits of marijuana of all international physicians. Therefore, all international physiciansis considered as population.
c.
Expert Solution
To determine
Identify the population proportion.
Explanation of Solution
Justification:
Population proportion:
The proportion that is calculated from the population which has a specific attribute is termed as the population proportion.
From the information, it is observed that the study is about the medicinal benefits of marijuana of all international physicians.
Therefore, the population proportion is proportion of international physicians in the sample who are feeling that the overall medicinal benefits of marijuana outweigh the risks and potential harms.
d.
Expert Solution
To determine
Check whether the proportion 0.76 is a sample proportion or a population proportion.
Answer to Problem 1RP
The proportion represents sample proportion.
Explanation of Solution
Justification:
Population proportion:
The proportion that is calculated from the population which has a specific attribute is termed as the population proportion.
Sample proportion:
The fraction of number of members sampled which have a specified attribute and the sample size n aretermed as the sample proportion.
Here, 76% out of 1,446 physicians said yes. Hence,the proportion 0.76 is for the sample of 1,446 physicians. Therefore,it represents sample proportion.
The overall international physicians would be more than 1,446.
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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. 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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. 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