Question 5 (the Response Variable) represent the corresponding seven ran selecte

Question

Question 5 (the Response Variable) represent the corresponding seven ran selected men and let Chol Age: 39, 52 47. 43. 63, $8. 69 CholesterolLevel: 189, 238. 220. 215, 244 236, 248 The sample Correlation Coefficient and the equation of the Regression Line are Correlation Coefficient 0.9112 Equation of Regression Line: Cholesteroll C Correlation Coefficient -0.8302 Equation of Regression Line: CholesterolLevel .. 1.7283 + 135·5434Age O Correlation Coefficient - 0.3215 Equation of Regression Line: Cholesterolevel - 45,6782 + 1,6743Age None of the above Question 5 of 16 Moving to the next question prevents changes to this answer. 267 DEC

Explanation / Answer

Solution:

First we have to find correlation from given data,

We use MINITAB for it,

First enter data in MINITAB sheet.

Then follow the steps,

stat---->Basic statistics ------> Correlation

Variables:

x y

Output:

Correlation coefficient = 0.911

Now we have to find linear regression equation.

Follow the steps:

stat--->Regression -->Regression...

Response : y Here Response: Cholesterol level

Predictors : x Predictors: Age

Ok

Output:

The regression equation is
y = 136 + 1.73 x

Here from above we can say that option (a) is correct.

That is,

Correlation coefficient = 0.911

The regression equation is
y = 135.5434 + 1.7283 Age

Done

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