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# 2 CQQ The exercises are based on the following sample data

ISBN: 9780321836960 18

## Solution for problem 2CQQ Chapter 10.6

Elementary Statistics | 12th Edition

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Problem 2CQQ

?2 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 The linear correlation coefficient ?r? is found to be 0.585. What should you conclude?

Step-by-Step Solution:

Solution 2 CQQ Step 1 : The given data is based on the second year medical students who took blood pressure measurements of the same person 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 .Following are the steps to analyze correlation and regression from Stat Disk > choose statistics - regression - regression > double click on the response and the predictor variables - ok Step 3 : a) From the Stat Disk we got 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.

Step 3 of 3

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