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ACOT Intro/Copyright
Succeeding in Business with Microsoft Excel 2010: Chapter
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Course Learning Outcomes
Upon completion of this course, students will be able to:
• Navigate online computer platforms to acquire and distribute
information.
• Apply Excel skills and tools in business problem solving.
• Solve problems with statistical analysis tools.
• Apply logic in decision making.
• Retrieve data for computation, analysis, and reference.
• Evaluate the financial impact of loans and investments.
• Organize data for effective analysis.
• Apply data tables and excel scenarios for what-if analysis.
• Synthesize smart worksheets.
• Enhance decision making with Solver.
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Roadmap
Chapter 2
Solving Problems with Statistical Analysis Tools
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Chapter Objectives
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Understanding Fundamentals of Statistics
Mean
Arithmetic average of a set of numbers
Median
Value in the middle
Mode
Occurs most frequently
Standard
deviation
How closely together the values are
dispersed from the arithmetic mean
Normal
distribution
Mean, median, and mode are the same
value
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Understanding Fundamentals of Statistics
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Understanding Fundamentals of Statistics
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Controlling the Precision of Data Using the
ROUND Function
• Changes precision of data values stored
• =ROUND (number,num_digits)
• Two different types of arguments
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Importance of adhering to function syntax
when working with multiple arguments
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The ROUND Function
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Controlling the Precision of Data
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Using Paste Special
to Copy and Paste Data
• Simplest method: Copy button and Paste
button in the Clipboard group on the Home
tab
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Using Paste Special
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“Set precision as displayed” option
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Calculating the Mean, Median, Mode, and
Standard Deviation
• Contain only one type of argument – a list of
values
– Constants
– Cell references
– Range of cells along a column
– Range of cells along a row
– Two-dimensional block of cells
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Statistical Functions
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Statistical Functions
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Managing Large Worksheets by Freezing Panes
and Splitting the Window
• Freezing panes
– Keeps titles displayed in top pane; allows bottom
pane to be scrolled
– Both titles and values further down are displayed
simultaneously
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Managing Large Worksheets by Freezing Panes
and Splitting the Window
• Splitting the window
– Allows you to scroll each portion individually,
top/bottom and left/right, with separate scroll
bars
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Comparing Current Values with Historical
Values
• Use a Comparison worksheet
– Places current values and historical values on a
separate worksheet in the workbook, side by side
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Calculating the Difference Between Two
Sets of Data
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Calculating the Percent Difference
Between Two Sets of Data
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Determining a Rank for Each Value in a
Data Set
• RANK.EQ function
– Allows a list to be sorted, then counts number of
entries either above or below the value in
question
• RANK.EQ (number,ref,order)
– If “order” argument is 0 or left blank, values are
ranked in descending order
– If “order” argument is a positive number, values
are ranked in ascending order
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Determining the Highest and Lowest Values in a
Data Set
• LARGE function
– Determines the nth largest value in a range
– LARGE (array,k)
• SMALL function
– Determines the nth smallest value in a range
– SMALL (array,k)
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Determining Values
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Determining the Number of Items that Meet
Specified Criteria
• COUNTIF function
– Counts the number of items in a range that meet
specified criteria
– =COUNTIF (range,criteria)
– Range argument must be a contiguous set of cells
– Criteria argument is a “test” that data must meet in
order to be counted in the grouping
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Types of Criteria Specified for the COUNTIF
Function
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Relational Operators
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Sample Result of COUNTIF Function
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Determining a Total Value for Items that Meet
Specified Criteria
• Use SUMIF function to add all values in a
range that meet specified criteria
– =SUMIF (range,criteria,sum_range)
– Sum_range argument identifies corresponding cell
range to sum if specified criteria have been met in the
range established by the “range” argument
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Examples of SUMIF Function
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Evaluating a Larger Data Set
• Separately list inputs, especially those likely to
change or that you might want to explore with
“what-if” scenarios
• If a large number of data inputs, place them
on a separate worksheet or in a separate area
on the same worksheet
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Specifying a Custom Number Format
• Use to alter format of a cell without altering
the value
• Format codes
– Can include up to four parts, each separated by a
semicolon: one for positive numbers, one for
negative numbers, one for zero values, one for
text
– Consist of combinations of symbols, each with a
separate meaning
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Custom Number Formatting Code
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Custom Number Formatting Codes
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Considering Alternatives:
What-if Analysis and Goal Seek
• What-if analysis
– Determines the outcome of changing one or more
input values and evaluates the recalculated results
• Goal Seek tool
– Specifies the outcome you want and which input
value you want to vary
– Excel automatically calculates the solution
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Using Goal Seek
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Using Goal Seek
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Using Goal Seek
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Using Goal Seek
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Limitations of Goal Seek
• Allows you to vary only a single output
• Input must be a constant value, not a value
derived from a formula
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Combining COUNTIF and AVERAGEIF to Analyze Data
in Specific Categories
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Analyzing Data Through Simulation
• Analytical method that creates artificially
generated data to imitate real data
• Easily calculated and recalculated to show
different possible outcomes (as opposed to
most probable outcome or even extreme
limits)
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Simulation Worksheet
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Functions Used in Simulation
• Use RANDBETWEEN function to randomly
assign a number between two values
– RANDBETWEEN (bottom,top)
• Use RAND function to assign a random value
– Has no arguments, but must include parentheses
• Use ROUND function to calculate probable
costs
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Automation Calculation
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Chapter Summary
• Using statistical functions to compare data
values
• Organizing and evaluating different data
groupings
• Extending the analysis with what-if, Goal Seek,
and simulation
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Chapter Objectives
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