1. AMTRA Presentation – 3/14/09 Presented by: Anne Geraci

2. What do the mean & standard deviation tell us? Overview: Pivot tables Lesson: Mining for data! Lesson: Grouping & Advanced Techniques Get started with PivotTable reports

3. 554510 … but what does this mean?

4. 61 60 59 53 46 45 44 40 38 37 Summary measures for selected variables Age Count15.000 Sum769.000 Mean51.267 Median53.000 Standard deviation9.231 Minimum37.000 Maximum61.000 Range24.000 Variance85.210 First quartile44.500 Third quartile60.000 Interquartile range15.500

5.  The “typical” age of the individuals in this sample is 51.2 years old.  The youngest person is 37.  The oldest person is 61.  The “average” deviation from 51.2 was 9.2 years.  By the empirical rule, 68% of people in this sample (or in the represented population) will be within 9.2 years (1 standard deviation) of 51.2, a range of 42 to 60 years old.

6.  Is there a difference in age between a “typical” female and a “typical” male?  What about the color of the car that people drive? Are older people more likely to drive a certain color car?

8. What’s a pivot table?

9. Get started with PivotTable reports

10. COLUMN VARIABLE

11. Get started with PivotTable reports DATA

12. Get started with PivotTable reports ROW & COLUMN TOTALS

13. Get started with PivotTable reports Each column = 1 field Field Name in Row 1 No blank rows or columns All data in one column must be similar (numeric or text)

14. Get started with PivotTable reports Excel 2007 – Insert tab, Tables group, click PivotTable, then PivotTable again For Excel 2003, click on Data, then PivotTable

15. Get started with PivotTable reports … select the range for your data and click OK.

16. Get started with PivotTable reports Classic layout (Excel 2003)New Format in Excel 2007

17. Get started with PivotTable reports