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ALZ 7.142 Studies on treating Alzheimer's disease. Alzheimer's disease is a progressive se of the brain. The journal eCAM (Nov. 2006) published an article that critiqued the quality of ethodology used in studies on Alzheimer's treatment. For each in a sample of 13 studies, the y of the methodology was measured on the Wong scale, with scores ranging from 9 (low ) to 27 (high quality). The data are shown in the table below. O Estimate, with a 99% confidence interval, the mean quality 4 of all studies on the treatment of Alzheimer's disease. Interpret the result. According to the researchers, a study with a Wong score below 18 used a methodology that "fails to sunport the author's conclusions" about the treatment of Alzbeimer's U Ise Wilson's

ALZ 7.142 Studies on treating Alzheimer's disease. Alzheimer's disease is a progressive se of the brain. The journal eCAM (Nov. 2006) published an article that critiqued the quality of ethodology used in studies on Alzheimer's treatment. For each in a sample of 13 studies, the y of the methodology was measured on the Wong scale, with scores ranging from 9 (low ) to 27 (high quality). The data are shown in the table below. O Estimate, with a 99% confidence interval, the mean quality 4 of all studies on the treatment of Alzheimer's disease. Interpret the result. According to the researchers, a study with a Wong score below 18 used a methodology that "fails to sunport the author's conclusions" about the treatment of Alzbeimer's U Ise Wilson's

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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Answer part a and b

ALZ 7.142 Studies on treating Alzheimer's disease. Alzheimer's disease is a progressive disease of the brain. The journal eCAM (Nov. 2006) published an article that critiqued the quality of the methodology used in studies on Alzheimer's treatment. For each in a sample of 13 studies, the quality of the methodology was measured on the Wong scale, with scores ranging from 9 (low quality) to 27 (high quality). The data are shown in the table below. O a. Estimate, with a 99% confidence interval, the mean quality H of all studies on the treatment of Alzheimer's disease. Interpret the result. b. According to the researchers, a study with a Wong score below 18 used a methodology that "fails to support the author's conclusions" about the treatment of Alzheimer's. Use Wilson's adjustment to estimate the proportion of all studies on the treatment of Alzheimer's disease with a Wong score below 18. Construct a 99% confidence interval around the estimate and interpret the result. 22 21 18 19 20 15 19 20 15 20 17 20 21
Transcribed Image Text:ALZ 7.142 Studies on treating Alzheimer's disease. Alzheimer's disease is a progressive disease of the brain. The journal eCAM (Nov. 2006) published an article that critiqued the quality of the methodology used in studies on Alzheimer's treatment. For each in a sample of 13 studies, the quality of the methodology was measured on the Wong scale, with scores ranging from 9 (low quality) to 27 (high quality). The data are shown in the table below. O a. Estimate, with a 99% confidence interval, the mean quality H of all studies on the treatment of Alzheimer's disease. Interpret the result. b. According to the researchers, a study with a Wong score below 18 used a methodology that "fails to support the author's conclusions" about the treatment of Alzheimer's. Use Wilson's adjustment to estimate the proportion of all studies on the treatment of Alzheimer's disease with a Wong score below 18. Construct a 99% confidence interval around the estimate and interpret the result. 22 21 18 19 20 15 19 20 15 20 17 20 21
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