Beard et al. (Lancet, 1982:455) described a randomised trial to determine if a low sodium diet was an effective substitute for pharmacological control of hypertension. 90 patients on medication for mild hypertension were allocated at random into two groups. The 45 participants in the intervention group (diet group) were encouraged to adopt a diet free from sodium. The other 45 participants (control group) were asked to continue their usual diet. All the participants were kept under close surveillance to see if it was possible to discontinue the medication for hypertension without detriment. In the diet group, medication was discontinued for 14 participants and in the control group for 4 participants. a) Draw a 2 by 2 table . b) Carry out a significance test to compare the intervention (diet group) and control group with respect to discontinuation of medication for hypertension. c) Write a brief report on your conclusion.

Beard et al. (Lancet, 1982:455) described a randomised trial to determine if a low sodium diet was an effective substitute for pharmacological control of hypertension. 90 patients on medication for mild hypertension were allocated at random into two groups. The 45 participants in the intervention group (diet group) were encouraged to adopt a diet free from sodium. The other 45 participants (control group) were asked to continue their usual diet. All the participants were kept under close surveillance to see if it was possible to discontinue the medication for hypertension without detriment. In the diet group, medication was discontinued for 14 participants and in the control group for 4 participants. a) Draw a 2 by 2 table . b) Carry out a significance test to compare the intervention (diet group) and control group with respect to discontinuation of medication for hypertension. c) Write a brief report on your conclusion.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012

1st Edition

ISBN:9780547587776

Author:HOLT MCDOUGAL

Publisher:HOLT MCDOUGAL

Chapter11: Data Analysis And Probability

Section: Chapter Questions

Problem 8CR

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