[PDF] [PDF] Calculating and displaying regression statistics in Excel

In this example, the p-value is 0 00018 Create your regression curve by making a scatter plot Add the regression line by choosing the “Layout” tab in the “Chart



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[PDF] Calculating and displaying regression statistics in Excel

In this example, the p-value is 0 00018 Create your regression curve by making a scatter plot Add the regression line by choosing the “Layout” tab in the “Chart



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Calculating and displaying regression statistics in Excel

Note: the Analysis TookPak is no longer included in Excel for the Mac. You need to download a third party analysis

program to perform some statistical tests. These instructions apply to Excel for Windows.

You will need to have the Data Analysis add-in installed to your version of Excel to run statistical tests. If you click on the

͞Data" menu tab and see the ͞Data Analysis" option as below, then the add-in is already installed.

If you do not see the ͞Data Analysis" option, you will need to install the add-in. Depending on the version of Excel you

are using, you do this by clicking on the Office button in the top left corner, and selecting the ͞Edžcel Options" button

(below left), or clicking on the ͞File" tab and then the ͞options" button (below right). You will then see the Excel Options menu (left): click on the ͞Add-Ins" button and select the ͞Analysis

To run the regression, arrange your data in columns as seen below. Click on the ͞Data" menu, and then choose the

find the regression option and click ͞OK". Now input the cells containing your data. In the menu box, click in the ͞Input Y Range" bodž and then use the cursor to select the column containing the data for the dependent variable. As you select the cells in your spreadsheet, the range should also appear in the menu box window. Repeat the process for ͞Input X Range" and your independent variable data. When eǀerything looks good, click ͞OK". You will now see the results of your statistical test (unless you selected otherwise, by default the results will open in a new worksheet). Among the variables that appear in the results sheet (left), depending on your experiment the most important result is the R square value, highlighted at left in the pink cell. You then report the R2 value in your text when you describe your statistical results. If you include a figure showing your regression analysis, you should also include this value in the figure. Steps for doing this appear below. You can also see the p-value (in red box) indicating whether or not the test is statistically significant (i.e. if p < 0.05). In this example, the p-value is 0.00018.

Create your regression curve by making a scatter plot. Add the regression line by choosing the ͞Layout" tab in the ͞Chart

above. To add the line equation and the R2 value to your figure, under the ͞Trendline" menu select ͞More Trendline

steps above to calculate your R2 value if you use this method - Excel will do that automatically).quotesdbs_dbs19.pdfusesText_25