Dr. D. Sugumar discusses using Microsoft Excel to analyze measurement data from an experiment. Key points covered include using Excel to calculate statistics like mean, median, mode, and standard deviation. Students will take measurements, input the data into Excel, and use functions and charts to analyze the results. Formatting, sorting, filtering and other Excel skills are reviewed to facilitate the data analysis task.

1. Dr. D. Sugumar
Associate Professor/ECE
Karunya

2. • Be able to use Microsoft Excel to
• Calculate mean, median, mode,
standard deviation, maximum and
minimum values
• Create a frequency chart
• Create a histogram

3. • Continue taking measurements.
• Each person take 5-7 cubes, measure and record their values, then trade with three
other people so you will have 28 measurements.
• Your task is to complete the measurements at the beginning of class today.
• Later in class we will take a look at using MS Excel to help with data analysis.

4. • First developed in 70s
• VisiCalc
• Dan Bricklin and Bob Frankston
• Operated on Apple II
• Not patented
• Excel based on earlier spreadsheet

5. • Store raw data
• Make calculations
• Analyze data
• Create charts to represent data
Get out your notes and
open Microsoft Excel.

6. • Column labels are letters
– A, B, C
• Row labels are numbers –
1, 2, 3
• A cell is the intersection of
a column and row – C12
• Worksheet
• all of the cells on a “page”
• Workbook
• collection of worksheets
• Excel file

7. • Change worksheet name
• Double click on sheet name
• Type new name
• Enter
• Change the name of the worksheet to
‘Heights’

8. • Create appropriate heading(s) for data
• Input data
• Type by hand
• Copy from electronic table
• Data array
• Row
• Column
• Table
Input height data
as shown.

9. • Cell designations used
to indicate values
• Order of operations
▪ Parentheses ( )
▪ Exponents ^
▪ Multiply *
▪ Divide /
▪ Add +
▪ Subtract –
Formula Bar
34
16
48
148

10. • Always begin with =
• Use arrow keys or click in cell to select cells
for values in formula
• Arrow left to A5
• Type +
• Arrow left to B5
• Type /
• Type 12
• Enter
Formula Bar
Input a formula to calculate
height in decimal feet for the first
height.

11. • To copy a formula
• Select cell to copy
• Right click
• Copy
• Select the range of cells to copy to
• Right click
• Paste
Create a heading and copy
formula to appropriate cells.

12. • Format cells
• Select data range
• Right click within range
• Select Format Cells
• Adjust format
• Number
• Decimal places
• Alignment
• Horizontal
Change format of height to 2
decimal places.

13. • Functions
• Defined mathematical calculation
Function Excel
command
Addition of numbers SUM
Mean AVERAGE
Median MEDIAN
Standard Deviation (population) STDEV.P
Mode (unimodal) MODE.SNGL
Minimum MIN
Maximum MAX
Copy the formulas into
your notes.

14. • Functions
• SUM (array)
• Gives the sum of an array
• Find the sum of the heights in decimal feet.
• Select the cell for output
• Type =
• Type SUM(
• Select the range of numbers to sum
• Enter

15. • Use functions to find the following statistics for the set of height measurements
• Mean
• Mode:
• Standard Deviation (population)
• Minimum
• Median
• Maximum
Use your
notes to
find the
formulas.

16. • File -> Options & Also ref:
• Click Add-Ins -> Manage box -> Excel Add-ins
• Go
• Add-Ins available box, Select the Analysis ToolPak check box ->OK
https://www.wallstreetmojo.com/analysis-toolpak-in-excel/

17. • Frequency Chart
• indicates the frequency of occurrence within a class interval
• Histogram
• graphical representation of the Frequency Chart

18. • Select class intervals
• Use 0.250 ft intervals for height data
• Define Bin values
• Bins give the boundary point between class intervals
• Values less than or equal to bin value (but greater than previous bin value) are
counted
1) Create the Bin chart for the decimal height
measures.

19. • Select the Data Analysis Tool
• Data tab > Analysis panel

20. • Select the Data Analysis Tool
• Data tab > Analysis panel
• Choose Histogram tool
• OK

21. • Select the Data Analysis Tool
• Data tab > Analysis panel
• Choose Histogram tool
• OK
• Select Input Range
• Select Bin Range
• Choose Output Range
• Select a cell on the worksheet
• Select ‘Chart Output’
• OK
x

22. 1) Click on
2) Click and Drag to
Select the Values to
Graph
3) Hit ‘Enter’

23. 1) Click on
2) Click and Drag to
Select the Bin
Values
3) Hit ‘Enter’

24. 1) Click on ‘Output
Range’ Button
2) Click to
check ‘Chart
Output’
3) Click on a Cell on the
Worksheet to select where the
Histogram will show up.
4) Click ‘OK’

25. Frequency Chart
Histogram

26. 0
0.5
1
1.5
2
2.5
3
3.5
4.75 5 5.25 5.5 5.75 6 6.25 6.5 More
Frequency
Bin
Histogram
Frequency
2) Double click on ‘Bin’ to ‘Height’
1) Double click on
‘Histogram’ and
change to ‘Heights of
Students’
3) Double click on
‘Frequency’ and
delete it.

27. Using the data from the
Cube Measures
Find the Mean, Median,
Mode, Standard Deviation
and create a histogram of
the data.
Push: Experiment with the
Histogram, display other
statistics on the data.
YourNameCubeStatistics
And complete the 3.3
Worksheet

28. 28
Objectives (1 of 2)
• Create a list
• Add, edit and delete records in an existing list
• Use Text Import Query and Query Wizard
• Describe the TODAY function and use date arithmetic
• Use the Sort command

29. 29
Objectives (2 of 2)
• Use the database functions: DSUM, DAVERAGE, DMAX, DMIN, and DCOUNT
• Use AutoFilter and Advanced Filter
• Use the Subtotals command
• Use a pivot table

30. 30
• Fundamentals of list management
• Display selected records
• Sort the list
• Use database functions, criteria range, and arithmetic
• Database management can use either Excel or Access but which is better?

31. 31
• Data management is based on lists in Excel
• Database concepts--record, fields, and primary keys are part of
list management
• Need valid input to produce valid output--Garbage In Garbage
Out (GIGO)
• Editing the list through Insert Row and Columns command and
Edit Delete

32. 32
• Lists can be used as simple databases
• Record is the individual information contained in a row
• Field is unique information contained in a column for a record
• Primary key is a unique field or combination like social security number

33. 33
• Data Form Command provides easy way to add, edit and delete records
• Sort command arranges lists according to value in fields
• Date Arithmetic is a powerful tool for formulas

34. 34

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Sort Ascending
Sort Descending

36. 36
• Converts an ASCII (text) file into an Excel workbook
• Two file formats: fixed width and delimited
• Use the Open command to get to Text Import Wizard

37. 37

38. 38

39. 39
• Text Import Wizard
• Add a Record - Data Form Command and Insert Rows
Command
• The Spell Check
• Sort the List
• Delete a Record
• Enter the Hire Dates; Insert a Field
• Format the Date

40. 40
• Data is simply facts
• Information is data arranged for a specific use
• Decisions in an organization are based on information
• Data commands, functions and reports provide information

41. 41
• AutoFilter is a subset of records which meet a set of criteria
• Advanced Filter allows for complex criterion and storing records in a separate worksheet area
• Criteria range specifies the values to search for in records

42. 42

43. 43

44. 44
• Must contain at least two rows--field names and a second row of values
• Same row entries imply an AND condition
• Values entered in different rows meet the OR condition
• Empty rows return all records

45. 45
• Relational operators can be used to find a designated range
• Upper and Lower Boundaries can be established
• Equal and unequal signs select empty and nonempty records

46. 46
Criteria ranges using
same row imply AND Criteria Ranges using
different rows imply OR

47. 47
• Parallel arithmetic operations of the same statistical functions
• DSUM
• DAVERAGE
• DMAX
• DMIN
• DCOUNT

48. 48

49. 49
• Calculate the Years of Service
• The AutoFilter Command
• The Custom AutoFilter Command
• The Advanced Filter Command
• The Insert Name Command
• Database Functions
• The DAVERAGE Function
• The DMAX, DMIN, DSUM & DCOUNT Functions
• Change the Criteria

50. 50
• Subtotals command in the Data menu computes subtotals based on data groups
• Uses a summary function like SUM or AVERAGE
• Outline format allows for several views of data

51. 51
• Pivot tables extends the capability of database functions by presenting the data in summary form
• Use PivotTable Wizard in the Data menu
• Displays a Pivot Table toolbar
• Can also display Pivot charts

52. 52
• Importing Data from Access
• Use the Data menu and click on Get External Data command
• Set up Database Query to select desired fields
• Will import to a Excel list

53. 53

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56. 56
• Insert a Column
• Create the Subtotals
• Examine the Subtotals
• The PivotTable Wizard
• Modify the Pivot Table
• Modify the Employee List
• Pivot the Table
• The Completed Pivot Table

57. 57
Summary (1 of 2)
• List contains records of data
• Information is data arranged in a useful format
• Dates can be used for calculations
• Importing data from other applications
• Filtered list displays only a subset of records

58. 58
Summary (2 of 2)
• Database functions: DSUM, DAVERAGE, DMAX, DMIN and DCOUNT
• Subtotals can be inserted into a list
• Pivot table presents data in summary form

59. 59
• The Student List
• Pivot Tables and Pivot Charts
• Expanded Employee List
• Object Linking and Embedding
• Object Linking and Embedding
• Date Arithmetic
• The Text Import Wizard