EBK EXCURSIONS IN MODERN MATHEMATICS
EBK EXCURSIONS IN MODERN MATHEMATICS
9th Edition
ISBN: 8220103632034
Author: Tannenbaum
Publisher: PEARSON
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Chapter 14, Problem 47E

Exercises 45 through 48 refer to a study on the effectiveness of an HPV (human papilloma virus) vaccine conducted between October 1998 and November 1999. HPV is the most common sexually transmitted infection—more than 20 million Americans are infected with HPV—but most HPV infections are benign, and in most cases infected individuals are not even aware they are infected. (On the other hand, some HPV infections can lead to cervical cancer in women.) The researchers recruited 2392 women from 16 different centers across the United States to participate in the study through advertisements on college campuses and in the surrounding communities. To be eligible to participate in the study, the subjects had to meet the following criteria: (1) be a female between 16 and 23 years of age, (2) not be pregnant, (3) have no prior abnormal Pap smears, and (4) report to have had sexual relations with no more than five men. At each center, half of the participants were randomly selected to receive the HPV vaccine, and the other half received a placebo injection. After 17.4 months, the incidence of HPV infection was 3.8 per 100 woman-years at risk in the placebo group and 0 per 100 woman-years at risk in the vaccine group. In addition, all nine cases of HPV-related cervical precancerous growths occurred among the placebo recipients. [Source: New England Journal of Medicine, 347, no. 21 (November 21, 2002): 1645–1651.]

a. Describe the treatment group in the study.

b. Could this study be considered a double-blind, randomized controlled placebo study? Explain.

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Chapter 14 Solutions

EBK EXCURSIONS IN MODERN MATHEMATICS

Ch. 14 - Exercises 11 and 12 refer to Chapmans correction....Ch. 14 - Exercises 11 and 12 refer to Chapmans correction....Ch. 14 - Starting in 2004, a study to determine the number...Ch. 14 - Exercises 25 through 28 refer to the following...Ch. 14 - Name the sampling method that best describes each...Ch. 14 - An audit is performed on last years 15, 000...Ch. 14 - Exercise17 through 20 refer to the following...Ch. 14 - Exercise17 through 20 refer to the following...Ch. 14 - Exercise17 through 20 refer to the following...Ch. 14 - Exercise17 through 20 refer to the following...Ch. 14 - Prob. 21ECh. 14 - Prob. 22ECh. 14 - Prob. 23ECh. 14 - Prob. 24ECh. 14 - Exercises 25 through 28 refer to the following...Ch. 14 - Exercises 25 through 28 refer to the following...Ch. 14 - Exercises 25 through 28 refer to the following...Ch. 14 - Exercises 29 and 30 refer to the following story:...Ch. 14 - Exercises 29 and 30 refer to the following story:...Ch. 14 - Prob. 31ECh. 14 - Prob. 32ECh. 14 - Exercises 33 through 36 refer to the following...Ch. 14 - Exercises 33 through 36 refer to the following...Ch. 14 - Exercises 33 through 36 refer to the following...Ch. 14 - Exercises 33 through 36 refer to the following...Ch. 14 - Exercises 37 through 40 refer to a clinical study...Ch. 14 - Exercises 37 through 40 refer to a clinical study...Ch. 14 - Exercises 37 through 40 refer to a clinical study...Ch. 14 - Prob. 40ECh. 14 - Prob. 41ECh. 14 - Exercises 41 through 44 refer to a clinical trial...Ch. 14 - Prob. 43ECh. 14 - Exercises 41 through 44 refer to a clinical trial...Ch. 14 - Prob. 45ECh. 14 - Prob. 46ECh. 14 - Exercises 45 through 48 refer to a study on the...Ch. 14 - Prob. 48ECh. 14 - Exercises 49 through 52 refer to a landmark study...Ch. 14 - Prob. 50ECh. 14 - Exercises 49 through 52 refer to a landmark study...Ch. 14 - Prob. 52ECh. 14 - Exercises 53 through 56 refer to a study conducted...Ch. 14 - Prob. 54ECh. 14 - Exercises53_ through 56_ refer to a study...Ch. 14 - Exercises53 through 56 refer to a study conducted...Ch. 14 - Prob. 57ECh. 14 - Prob. 58ECh. 14 - Exercises 57 through 60 refer to the following...Ch. 14 - Prob. 60ECh. 14 - Prob. 61ECh. 14 - Prob. 62ECh. 14 - Prob. 63ECh. 14 - Prob. 64ECh. 14 - Read the examples of informal surveys given in...Ch. 14 - Leading-question bias. The way the questions in...Ch. 14 - Prob. 67ECh. 14 - Prob. 68ECh. 14 - Prob. 69ECh. 14 - Prob. 70ECh. 14 - Prob. 71ECh. 14 - Prob. 72ECh. 14 - One of the problems with the capture-recapture...Ch. 14 - Darrochs method. is a method for estimating the...
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