Elementary Statistics (13th Edition)
13th Edition
ISBN: 9780134462455
Author: Mario F. Triola
Publisher: PEARSON
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Chapter 1, Problem 3RE
Sample Design Literacy In “Cardiovascular Effects of Intravenous Triiodothyronine in Patients Undergoing Coronary Artery Bypass Graft Surgery” [Journal of the American Medical Association (JAMA), Vol 275, No. 9, the authors explain that patients were assigned to one of three groups: (1) a group treated with triidothyronine. (2) a group treated with normal saline bolus and dopamine, and (3) a placebo group given normal saline. The authors summarize the sample design as “randomized and double-blind.” Describe the meaning of “randomized” and “double-blind” in the context of this study.
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NCI Cancer Bulletin, December 2, 2008 Volume 5 / Number 24
Title of the article: After Menopause, Weight Affects Breast Cancer Rates More than Mammography Use
Women who are overweight or obese after menopause face an increased risk of breast cancer, but a large prospective cohort study indicates that the frequency of mammography use and screening accuracy are not the primary explanations for higher rates of breast cancer in these women. The same is true of large, invasive breast cancer tumors and advanced stage disease; risk increases with weight, but higher rates are not explained by the frequency or accuracy of screening mammography before breast cancer was diagnosed. The study appears in the December 3 Journal of the National Cancer Institute.
Dr. Karla Kerlikowske of the San Francisco Veterans Affairs Medical Center and colleagues gathered data on 287,115 postmenopausal women who were registered in the Breast Cancer Surveillance Consortium database. Reflecting a trend in the…
NCI Cancer Bulletin, December 2, 2008 Volume 5 / Number 24
Title of the article: After Menopause, Weight Affects Breast Cancer Rates More than Mammography Use
Women who are overweight or obese after menopause face an increased risk of breast cancer, but a large prospective cohort study indicates that the frequency of mammography use and screening accuracy are not the primary explanations for higher rates of breast cancer in these women. The same is true of large, invasive breast cancer tumors and advanced stage disease; risk increases with weight, but higher rates are not explained by the frequency or accuracy of screening mammography before breast cancer was diagnosed. The study appears in the December 3 Journal of the National Cancer Institute.
Dr. Karla Kerlikowske of the San Francisco Veterans Affairs Medical Center and colleagues gathered data on 287,115 postmenopausal women who were registered in the Breast Cancer Surveillance Consortium database. Reflecting a trend in the…
Chapter 1 Solutions
Elementary Statistics (13th Edition)
Ch. 1.1 - Online Medical Info USA Today posted this question...Ch. 1.1 - Reported Versus Measured In a survey of 1046...Ch. 1.1 - Statistical Significance Versus Practical...Ch. 1.1 - Correlation One study showed that for a recent...Ch. 1.1 - Consider the Source. In Exercises 58, determine...Ch. 1.1 - Consider the Source. In Exercises 58, determine...Ch. 1.1 - Consider the Source. In Exercises 58, determine...Ch. 1.1 - Consider the Source. In Exercises 58, determine...Ch. 1.1 - Sampling Method. In Exercises 912, determine...Ch. 1.1 - Sampling Method. In Exercises 912, determine...
Ch. 1.1 - Sampling Method. In Exercises 9-12, determine...Ch. 1.1 - Sampling Method. In Exercises 912, determine...Ch. 1.1 - Statistical Significance and Practical...Ch. 1.1 - Statistical Significance and Practical...Ch. 1.1 - Statistical Significance and Practical...Ch. 1.1 - Statistical Significance and Practical...Ch. 1.1 - In Exercises 1720, refer to the sample of body...Ch. 1.1 - In Exercises 1720, refer to the sample of body...Ch. 1.1 - In Exercises 1720, refer to the sample of body...Ch. 1.1 - In Exercises 1720, refer to the sample of body...Ch. 1.1 - In Exercises 2124, refer to the data in the table...Ch. 1.1 - In Exercises 2124, refer to the data in the table...Ch. 1.1 - In Exercises 2124, refer to the data in the table...Ch. 1.1 - In Exercises 2124, refer to the data in the table...Ch. 1.1 - Whats Wrong? In Exercises 2528, identify what is...Ch. 1.1 - Whats Wrong? In Exercises 2528, identify what is...Ch. 1.1 - Whats Wrong? In Exercises 2528, identify what is...Ch. 1.1 - Whats Wrong? In Exercises 25-28, identify what is...Ch. 1.1 - Workplace Attire In a survey conducted by Opinion...Ch. 1.1 - Checking Job Applicants In a study conducted by...Ch. 1.1 - Marriage Proposals In a survey conducted by...Ch. 1.1 - Chillax USA Today reported results from a Research...Ch. 1.1 - Percentages in Advertising An ad for Big Skinny...Ch. 1.1 - Percentages in Advertising Continental Airlines...Ch. 1.1 - Percentages In Advertising A New York Times...Ch. 1.1 - Percentages in Negotiations When the author was...Ch. 1.1 - Whats Wrong with This Picture? The Newport...Ch. 1.1 - Falsifying Data A researcher at the...Ch. 1.2 - Parameter and Statistic In a Harris Interactive...Ch. 1.2 - Quantitative/Categorical Data Identify each of the...Ch. 1.2 - Discrete/Continuous Data Which of the following...Ch. 1.2 - Health Survey In a survey of 1020 adults in the...Ch. 1.2 - In Exercises 512, identify whether the given value...Ch. 1.2 - In Exercises 512, identify whether the given value...Ch. 1.2 - In Exercises 512, identify whether the given value...Ch. 1.2 - In Exercises 512, identify whether the given value...Ch. 1.2 - In Exercises 512, identify whether the given value...Ch. 1.2 - In Exercises 512, identify whether the given value...Ch. 1.2 - In Exercises 512, identify whether the given value...Ch. 1.2 - In Exercises 512, identify whether the given value...Ch. 1.2 - In Exercises 1320, determine whether the data are...Ch. 1.2 - In Exercises 1320, determine whether the data are...Ch. 1.2 - In Exercises 13-20, determine whether the data are...Ch. 1.2 - In Exercises 13-20, determine whether the data are...Ch. 1.2 - In Exercises 1320, determine whether the data are...Ch. 1.2 - In Exercises 1320, determine whether the data are...Ch. 1.2 - In Exercises 1320, determine whether the data are...Ch. 1.2 - In Exercises 1320, determine whether the data are...Ch. 1.2 - In Exercises 2128, determine which of the four...Ch. 1.2 - In Exercises 2128, determine which of the four...Ch. 1.2 - In Exercises 2128, determine which of the four...Ch. 1.2 - In Exercises 2128, determine which of the four...Ch. 1.2 - In Exercises 2128, determine which of the four...Ch. 1.2 - In Exercises 2128, determine which of the four...Ch. 1.2 - In Exercises 2128, determine which of the four...Ch. 1.2 - In Exercises 2128, determine which of the four...Ch. 1.2 - In Exercises 2932, identify the level of...Ch. 1.2 - Social Security Numbers As part of a project in a...Ch. 1.2 - Temperatures As this exercise is being written, it...Ch. 1.2 - College Ranks As of this writing, U.S. News World...Ch. 1.2 - Countable For each of the following, categorize...Ch. 1.3 - Back Pain Treatment In a study designed to test...Ch. 1.3 - Blinding What does it mean when we say that the...Ch. 1.3 - Replication In what specific way was replication...Ch. 1.3 - Sampling Method The patients included in the study...Ch. 1.3 - Exercises 58 refer to the study of an association...Ch. 1.3 - Experiment or Observational Study Is the study an...Ch. 1.3 - Exercises 58 refer to the study of an association...Ch. 1.3 - Sampling Method Assume that the population...Ch. 1.3 - In Exercises 920, identify which of these types of...Ch. 1.3 - In Exercises 920, identify which of these types of...Ch. 1.3 - In Exercises 920, identify which of these types of...Ch. 1.3 - In Exercises 920, identify which of these types of...Ch. 1.3 - In Exercises 920, identify which of these types of...Ch. 1.3 - In Exercises 920, identify which of these types of...Ch. 1.3 - In Exercises 920, identify which of these types of...Ch. 1.3 - In Exercises 920, identify which of these types of...Ch. 1.3 - In Exercises 920, identify which of these types of...Ch. 1.3 - In Exercises 920, identify which of these types of...Ch. 1.3 - In Exercises 920, identify which of these types of...Ch. 1.3 - In Exercises 920, identify which of these types of...Ch. 1.3 - Critical Thinking: Whats Wrong? In Exercises 2128,...Ch. 1.3 - Critical Thinking: Whats Wrong? In Exercises 2128,...Ch. 1.3 - Critical Thinking: Whats Wrong? In Exercises 2128,...Ch. 1.3 - Critical Thinking: Whats Wrong? In Exercises 2128,...Ch. 1.3 - Critical Thinking: Whats Wrong? In Exercises 2128,...Ch. 1.3 - Critical Thinking: Whats Wrong? In Exercises 2128,...Ch. 1.3 - Critical Thinking: Whats Wrong? In Exercises 2128,...Ch. 1.3 - Critical Thinking: Whats Wrong? In Exercises 2128,...Ch. 1.3 - In Exercises 2932, indicate whether the...Ch. 1.3 - Prob. 30BSCCh. 1.3 - In Exercises 2932, indicate whether the...Ch. 1.3 - In Exercises 2932, indicate whether the...Ch. 1.3 - In Exercises 3336, identify which of these designs...Ch. 1.3 - In Exercises 3336, identify which of these designs...Ch. 1.3 - In Exercises 3336, identify which of these designs...Ch. 1.3 - In Exercises 3336, identify which of these designs...Ch. 1.3 - Simple Random Sample vs. Random Sample Refer to...Ch. 1 - Hospitals In a study of births in New York State,...Ch. 1 - Hospitals Which of the following best describes...Ch. 1 - Birth Weights In the same study cited in Exercise...Ch. 1 - Birth Weights Are the birth weights described in...Ch. 1 - Birth Weights Which of the following best...Ch. 1 - Statistic /Parameter In an AARP survey of 1019...Ch. 1 - AARP Survey Refer to the survey described in...Ch. 1 - Observational Study or Experiment Are the data...Ch. 1 - Physicians Health Study In the Physicians Health...Ch. 1 - Sampling In a statistical study, which of the...Ch. 1 - Whats Wrong? In an American Optometric Association...Ch. 1 - Paying for First Dates USA Today posted this...Ch. 1 - Sample Design Literacy In Cardiovascular Effects...Ch. 1 - Divorces and Margarine One study showed that there...Ch. 1 - Simple Random Sample Which of the following is/are...Ch. 1 - Defense of Marriage Act Both of the following...Ch. 1 - Colleges in United States Currently, there are...Ch. 1 - Percentages a. The labels on U-Turn protein energy...Ch. 1 - Types of Data In each of the following, identify...Ch. 1 - Statistical Significance and Practical...Ch. 1 - Prob. 1CRECh. 1 - Prob. 2CRECh. 1 - Tallest Person Robert Wadlow (19181940) is the...Ch. 1 - Body Temperature The given expression is used for...Ch. 1 - Determining Sample Size The given expression is...Ch. 1 - Standard Deviation One way to get a very rough...Ch. 1 - Standard Deviation The standard deviation is an...Ch. 1 - Standard Deviation The given expression is used to...Ch. 1 - Scientific Notation. In Exercises 912, the given...Ch. 1 - Scientific Notation. In Exercises 912, the given...Ch. 1 - Scientific Notation. In Exercise 912, the given...Ch. 1 - Prob. 12CRECh. 1 - Prob. 1TPCh. 1 - Critical Thinking: Do Male Symphony Conductors...Ch. 1 - Critical Thinking: Do Male Symphony Conductors...Ch. 1 - Critical Thinking: Do Male Symphony Conductors...Ch. 1 - Critical Thinking: Do Male Symphony Conductors...
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- NCI Cancer Bulletin, December 2, 2008 Volume 5 / Number 24 Title of the article: After Menopause, Weight Affects Breast Cancer Rates More than Mammography Use Women who are overweight or obese after menopause face an increased risk of breast cancer, but a large prospective cohort study indicates that the frequency of mammography use and screening accuracy are not the primary explanations for higher rates of breast cancer in these women. The same is true of large, invasive breast cancer tumors and advanced stage disease; risk increases with weight, but higher rates are not explained by the frequency or accuracy of screening mammography before breast cancer was diagnosed. The study appears in the December 3 Journal of the National Cancer Institute. Dr. Karla Kerlikowske of the San Francisco Veterans Affairs Medical Center and colleagues gathered data on 287,115 postmenopausal women who were registered in the Breast Cancer Surveillance Consortium database. Reflecting a trend in the…arrow_forwardNCI Cancer Bulletin, December 2, 2008 Volume 5 / Number 24 Title of the article: After Menopause, Weight Affects Breast Cancer Rates More than Mammography Use Women who are overweight or obese after menopause face an increased risk of breast cancer, but a large prospective cohort study indicates that the frequency of mammography use and screening accuracy are not the primary explanations for higher rates of breast cancer in these women. The same is true of large, invasive breast cancer tumors and advanced stage disease; risk increases with weight, but higher rates are not explained by the frequency or accuracy of screening mammography before breast cancer was diagnosed. The study appears in the December 3 Journal of the National Cancer Institute. Dr. Karla Kerlikowske of the San Francisco Veterans Affairs Medical Center and colleagues gathered data on 287,115 postmenopausal women who were registered in the Breast Cancer Surveillance Consortium database. Reflecting a trend in the…arrow_forwardVasectomies and Prostate Cancer. In the United States, approximately 450,000 vasectomies are performed each year. In this surgical procedure for contraception, the tube carrying sperm from the testicles is cut and tied. Several studies have been conducted to analyze the relationship between vasectomies and prostate cancer. The results of one such study by E. Giovannucci et al. appeared in the paper “A Retrospective Cohort Study of Vasectomy and Prostate Cancer in U.S. Men” (Journal of the American Medical Association, Vol. 269(7), pp. 878–882). Of 21,300 men who had not had a vasectomy, 69 were found to have prostate cancer; of 22,000 men who had had a vasectomy, 113 were found to have prostate cancer. a. At the 1% significance level, do the data provide sufficient evidence to conclude that men who have had a vasectomy are at greater risk of having prostate cancer? Consider men who had had a vasectomy Population 2. b. Is this study a designed experiment or an observational study?…arrow_forward
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