1 Using Excel for Statistics in Gateway Cases. 2 Concepts Covered Statistics - Descriptive Statistics - Scatter Plots - Histograms - Regression Analysis.

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Presentation transcript:

1 Using Excel for Statistics in Gateway Cases

2 Concepts Covered Statistics - Descriptive Statistics - Scatter Plots - Histograms - Regression Analysis - Test of hypothesis for two populations

3 Using Excel: Descriptive Statistics Click Tools/Data Analysis/Descriptive Statistics. Click OK. Put Checkmarks on Summary Statistics, 95% or 99% Confidence Interval, & Labels in First Row Boxes. Move Cursor to Input Range Window, Highlight Data to Analyze including Labels, & Click OK. Your Data will Appear on New Worksheet. Widen Columns by Clicking Format/Column/AutoFit Selection.

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8 Using Excel: Scatter Plots Go Back to Sheet One. Click Insert/Chart/XY (Scatter) then click Next. Be Sure Cursor is on Data Range Window, Highlight Two Data Columns, then Click Next. Add Titles to Chart & Click Next. Check New Sheet and Click Finish. Click a Datum Point on Chart with Right Mouse Key, Add Trendline, & Click Linear.

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17 Using Excel: Constructing Histograms Click Tools/Data Analysis/Histogram & OK. Put Checkmarks on Chart Output & New Worksheet Boxes. Move Cursor to Input Range Window, Highlight Data Going into Histogram. Move Cursor to Input Bin Range, Highlight Data Showing Upper Value of Each Bin & Click OK. Histogram will be on New Worksheet. You May Lengthen it by Clicking Blank Space in Window, Moving Cursor to Window Bottom Line & Holding Down Mouse Button as You Pull Down Window.

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21 Using Excel: Regression Analysis Go Back to Sheet One. Click Tools/Data Analysis/Regression & Click OK. On New Window Check Labels Box and Put Cursor on X Range. Highlight X Data Including Label. Put Cursor on Y Range & Highlight Y Data (Including Label), Then Click OK. Click Format/Column/AutoFit to Widen Columns.

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26 Using Excel: Hypothesis Testing Go Back to Sheet One. Click Tools/Data Analysis/ and the appropriate statistical test. Then Click OK. On New Window Check Labels Box and Put Cursor on Variable 1 Range. Highlight Variable 1 Data Including Label. Put Cursor on Variable 2 Range & Highlight Variable 2 Data (Including Label). Then Click OK. Click Format/Column/AutoFit to Widen Columns.

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