8th Edition

ISBN: 9781305268920

Author: Bernard Rosner

Publisher: Cengage Learning

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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 8, Problem 45P

Ten patients with advanced diabetic nephropathy (kidney complications of diabetes) were treated with captopril over an 8-week period [9]. Urinary protein was measured before and after drug therapy, with results listed in Table 8.16 in both the raw and ln scale.

Table 8.16 Changes in urinary protein after treatment with captopril

Chapter 8, Problem 45P, Ten patients with advanced diabetic nephropathy (kidney complications of diabetes) were treated with

Perform the test in Problem 8.44 using both the raw and ln scale, and report a p-value. Are there any advantages to using the raw or the ln scale?

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Chapter 8, Problem 44P

Chapter 8, Problem 46P

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Chapter 8 Solutions

Fundamentals of Biostatistics

Ch. 8 - The mean 1 sd of ln [calcium intake (mg)] among 25...Ch. 8 - The mean 1 sd of ln [calcium intake (mg)] among 25...Ch. 8 - The mean 1 sd of ln [calcium intake (mg)] among 25...Ch. 8 - Refer to the data in Table 2.13. Table 2.13...Ch. 8 - Refer to the data in Table 2.13. What is the...Ch. 8 - Refer to the data in Table 2.13. Perform the...Ch. 8 - Refer to the data in Table 2.13. What is the...Ch. 8 - Refer to the data in Table 2.13. Compute a 95% CI...Ch. 8 - The drug diflunisal is used to treat mild to...Ch. 8 - The drug diflunisal is used to treat mild to...Ch. 8 - The drug diflunisal is used to treat mild to...Ch. 8 - The drug diflunisal is used to treat mild to...Ch. 8 - A study in Pittsburgh measured various...Ch. 8 - A study in Pittsburgh measured various...Ch. 8 - A 1980 study was conducted whose purpose was to...Ch. 8 - A 1980 study was conducted whose purpose was to...Ch. 8 - A 1980 study was conducted whose purpose was to...Ch. 8 - A camera has been developed to detect the presence...Ch. 8 - A camera has been developed to detect the presence...Ch. 8 - A camera has been developed to detect the presence...Ch. 8 - Prob. 31P Ch. 8 - Prob. 32P Ch. 8 - Prob. 33P Ch. 8 - A possible important environmental determinant of...Ch. 8 - A possible important environmental determinant of...Ch. 8 - A possible important environmental determinant of...Ch. 8 - A possible important environmental determinant of...Ch. 8 - Prob. 38P Ch. 8 - The degree of clinical agreement among physicians...Ch. 8 - The degree of clinical agreement among physicians...Ch. 8 - The degree of clinical agreement among physicians...Ch. 8 - The degree of clinical agreement among physicians...Ch. 8 - The degree of clinical agreement among physicians...Ch. 8 - Ten patients with advanced diabetic nephropathy...Ch. 8 - Ten patients with advanced diabetic nephropathy...Ch. 8 - Ten patients with advanced diabetic nephropathy...Ch. 8 - Ten patients with advanced diabetic nephropathy...Ch. 8 - A study was conducted of genetic and environmental...Ch. 8 - A study was conducted of genetic and environmental...Ch. 8 - Prob. 51P Ch. 8 - Prob. 52P Ch. 8 - Prob. 53P Ch. 8 - Prob. 54P Ch. 8 - Prob. 55P Ch. 8 - Prob. 56P Ch. 8 - Prob. 57P Ch. 8 - Prob. 58P Ch. 8 - Prob. 59P Ch. 8 - Prob. 60P Ch. 8 - Prob. 61P Ch. 8 - Prob. 62P Ch. 8 - Prob. 63P Ch. 8 - A study was conducted [12] comparing muscle...Ch. 8 - Prob. 65P Ch. 8 - A clinical trial compared percutaneous...Ch. 8 - Prob. 68P Ch. 8 - Prob. 69P Ch. 8 - An experiment was conducted to examine the...Ch. 8 - An experiment was conducted to examine the...Ch. 8 - An experiment was conducted to examine the...Ch. 8 - Prob. 73P Ch. 8 - Prob. 74P Ch. 8 - Prob. 75P Ch. 8 - Prob. 77P Ch. 8 - A study was performed looking at the effect of...Ch. 8 - A study was performed looking at the effect of...Ch. 8 - A study was performed looking at the effect of...Ch. 8 - Prob. 81P Ch. 8 - Prob. 82P Ch. 8 - Prob. 83P Ch. 8 - Tennis elbow is a painful condition that afflicts...Ch. 8 - Prob. 85P Ch. 8 - Prob. 86P Ch. 8 - Prob. 87P Ch. 8 - Prob. 88P Ch. 8 - A study compared mean electroretinogram (ERG)...Ch. 8 - A study compared mean electroretinogram (ERG)...Ch. 8 - A study compared mean electroretinogram (ERG)...Ch. 8 - A study compared mean electroretinogram (ERG)...Ch. 8 - A study compared mean electroretinogram (ERG)...Ch. 8 - Prob. 94P Ch. 8 - Prob. 95P Ch. 8 - Prob. 96P Ch. 8 - Prob. 98P Ch. 8 - A study was performed to determine the effect of...Ch. 8 - A study was performed to determine the effect of...Ch. 8 - A study was performed to determine the effect of...Ch. 8 - A study was performed to determine the effect of...Ch. 8 - A study is being planned to assess whether a...Ch. 8 - A study is being planned to assess whether a...Ch. 8 - Prob. 105P Ch. 8 - Prob. 106P Ch. 8 - Left ventricular mass (LVM) is an important risk...Ch. 8 - Left ventricular mass (LVM) is an important risk...Ch. 8 - Prob. 109P Ch. 8 - Prob. 110P Ch. 8 - Prob. 111P Ch. 8 - A study sought to demonstrate that soy beans...Ch. 8 - Prob. 113P Ch. 8 - A study sought to demonstrate that soy beans...Ch. 8 - study was recently reported comparing the effects...Ch. 8 - study was recently reported comparing the effects...Ch. 8 - study was recently reported comparing the effects...Ch. 8 - study was recently reported comparing the effects...Ch. 8 - The Diabetes Prevention Study was a randomized...Ch. 8 - Prob. 122P Ch. 8 - Prob. 123P Ch. 8 - Prob. 124P Ch. 8 - Prob. 125P Ch. 8 - Prob. 126P Ch. 8 - Prob. 127P Ch. 8 - A study looked at the influence of retirement on...Ch. 8 - Cigarette smoking has important health...Ch. 8 - Cigarette smoking has important health...Ch. 8 - Cigarette smoking has important health...Ch. 8 - Cigarette smoking has important health...Ch. 8 - Cigarette smoking has important health...Ch. 8 - Prob. 134P Ch. 8 - Prob. 135P Ch. 8 - Prob. 136P Ch. 8 - Prob. 137P Ch. 8 - Prob. 138P Ch. 8 - Prob. 142P Ch. 8 - Prob. 143P Ch. 8 - Prob. 144P Ch. 8 - Prob. 145P Ch. 8 - A study of genetic factors related to coronary...Ch. 8 - A study of genetic factors related to coronary...Ch. 8 - A study of genetic factors related to coronary...Ch. 8 - Prob. 149P Ch. 8 - Prob. 150P Ch. 8 - Prob. 151P Ch. 8 - Prob. 152P Ch. 8 - Prob. 153P Ch. 8 - Prob. 154P Ch. 8 - Prob. 155P Ch. 8 - An individual has been exercising at a local gym...Ch. 8 - Prob. 157P Ch. 8 - Suppose we have two groups with sample sizes of 8...Ch. 8 - Suppose we have two groups with sample sizes of 8...Ch. 8 - Suppose we have two groups with sample sizes of 8...Ch. 8 - In a 5-year follow-up of bilateral stimulation of...Ch. 8 - In a 5-year follow-up of bilateral stimulation of...Ch. 8 - In a 5-year follow-up of bilateral stimulation of...Ch. 8 - The following data are from a study on Botox...Ch. 8 - The following data are from a study on Botox...Ch. 8 - Prob. 166P Ch. 8 - Prob. 167P Ch. 8 - Prob. 168P Ch. 8 - The EPIC-Norfolk study, a study of diet and cancer...Ch. 8 - Prob. 170P Ch. 8 - Prob. 171P Ch. 8 - Prob. 172P Ch. 8 - Prob. 173P Ch. 8 - Prob. 174P Ch. 8 - Prob. 175P Ch. 8 - Prob. 176P

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