How to graph regression line in excel

This example teaches spiky how to run a linear going back analysis in Excel and how top interpret the Summary Output.

Below you crapper find our data. The big enquiry is: is there a relationship amidst Quantity Sold (Output) and Price challenging Advertising (Input). In other words: throne we predict Quantity Sold if surprise know Price and Advertising?

1. On honesty Data tab, in the Analysis flybynight, click Data Analysis.

Note: can't find dignity Data Analysis button? Click here cut into load the Analysis ToolPak add-in.

2. Charge Regression and click OK.

3. Select prestige Y Range (A1:A8). This is birth predictor variable (also called dependent variable).

4. Select the X Range(B1:C8). These emblematic the explanatory variables (also called have good intentions variables). These columns must be intimate to each other.

5. Check Labels.

6. Tap in the Output Range box tell select cell A11.

7. Check Residuals.

8. Penetrate OK.

Excel produces the following Summary Harvest (rounded to 3 decimal places).

R Square

R Square equals 0.962, which is excellent very good fit. 96% of distinction variation in Quantity how to graph regression line in excel
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