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5 CQQ The exercises are based on the following sample data

Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola ISBN: 9780321836960 18

Solution for problem 5CCQ Chapter 10.6

Elementary Statistics | 12th Edition

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Elementary Statistics | 12th Edition | ISBN: 9780321836960 | Authors: Mario F. Triola

Elementary Statistics | 12th Edition

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Problem 5CCQ

?5 CQQ The exercises are based on the following sample data obtained from different second-year medical students who took blood pressure measurements of the same person (based on data from Marc Triola, MD). S y s t o l i c D i a s t o l i c Given that the linear correlation coefficient ?r? is found to be 0.585, what is the proportion of the variation in diastolic blood pressure that is explained by the linear relationship between systolic and diastolic blood pressure?

Step-by-Step Solution:

Solution 5 CQQ Step 1 : The given data is based on the second year medical students who took blood pressure measurements of the same person The claim is to test whether any linear relationship exists between systolic blood pressure and diastolic blood pressure Following are the steps to analyze correlation and regression from Stat Disk . Enter the dataset in stat disk AnalysisCorrelation and regression. . Choose level of significance evaluate By using Minitab . Enter the dataset in Mini tab Statisticsregression regression . Double click on response variable and predictor variable OK Step 2 : The value of correlation r = 0.5853 The regression line is given by D= -1.99 + 0.698 x S Let , S = Systolic blood pressure which is the independent variable, D = Predicted value of the diastolic blood pressure which is dependent. The critical value is = ± 0.8783

Step 3 of 3

Chapter 10.6, Problem 5CCQ is Solved
Textbook: Elementary Statistics
Edition: 12
Author: Mario F. Triola
ISBN: 9780321836960

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5 CQQ The exercises are based on the following sample data