Question

Asked May 20, 2019

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Step 1

**Solution:**

**Computation of equation of the regression line:**

Step-by-step EXCEL procedure to find the equation of the regression line is as follows.

- Go to data -> Data Analysis.
- Select “Regression” from
**Analysis Tools**and click**Ok**. - Select Y data in
**Input Y Range**and select X data in**Input X Range**. - Click Ok.

The output is as follows.

Step 2

**Coefficients:**

From the EXCEL output, the coefficient of intercept is 3.4009 and the coefficient of x is 0.4000.

Thus, the equation of the regression line is **y-hat=3.40+0.4x**.

Step 3

**Scatterplot for the regression line:**

- Step-by-step EXCEL procedure to plot scatterplot for the regression line is as follows.
- Select the data and go to insertà
- Choose the scatter diagram.
- Right click on...

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