1. Microsoft Excel Chapters 9&10
Nagendra Vemulapalli

2. Points About Exam Exams will be conducted next week.
-Monday 10/1 for section 09(sections meeting at 12:30pm)
-Wednesday 10/3 for section 07(sections meeting at 11:30am).
Students must have Student ID or Driver License
with them. No ID = no test and no makeup.
Students should sign-in for attendance for recordkeeping purposes (no credit).
4/8/2019
Nagendra Vemulapalli

3. Exam Timings Students have 10 minutes to review exam before starting.
Exam must be completed with in 60 minutes.
The time provided goes beyond the scheduled class period.
Students should plan to arrive 15 minutes early and stay 15 minutes late on test days.
4/8/2019
Nagendra Vemulapalli

4. Exam Day Schedule Event 11:30am section
Students should enter class room. Checking of ID’s
11:15am
Put away all books and materials.
Students can review test, but may not
begin it
11:20am
Test begins.
11:30am
Remainder about remaining time.
12:15pm
Test period over. Students must close
Office applications and submit projects
12:30pm
4/8/2019
Nagendra Vemulapalli

5. Exam Day Schedule Event 12:30pm section
Students should enter class room. Checking of ID’s
12:15pm
Put away all books and materials.
Students can review test, but may not
begin it
12:20pm
Test begins
12:30pm
Remainder about remaining time
1:15pm
Test period over. Students must close
Office applications and submit projects
1:30pm
4/8/2019
Nagendra Vemulapalli

6. Student project files All student projects are to remain on the local
computer.
– No USB drives.
– Student cannot files to themselves
Student Resources
Study Guides (cs101.wvu.edu/studyguides)
Any updates regarding exams will be ed to you. Keep checking your ’s
4/8/2019
Nagendra Vemulapalli

7. Conditional Functions
SUMIF - Similar to the SUM function except that it enables you to calculate a sum of values in a range that satisfies a specific condition you specify instead of calculating the sum of an entire range .It can add values of the specified parallel cells from same row
Syntax
SUMIF(Range,Criteria,Sum_Range)
Range - Range of cells Evaluated by criteria
Criteria- It can be expressed in form of text, expression or Numbers that define cells to be added
Sum_Range= Actual cells to be added If corresponding cells in Range match Criteria
4/8/2019
Nagendra Vemulapalli

8. COUNTIF..
COUNTIF Returns the number of cells in a Specified range that match the specified criteria
Syntax
COUNTIF(Range,Criteria)
Range - Range of cells to be counted
Criteria- It can be expressed in form of text, expression or Numbers that define cells to be counted
4/8/2019
Nagendra Vemulapalli

9. Hands On Example.. Download example1 file from today’s Lecture Notes
This is an example of a billing calculation of small business to keep track whether a client has paid his bills or does still he owe money.
We will also be calculating
The Total dues and
Total Money Collected
SUMIF and COUNTIF will be the main two functions to accomplish these tasks.
4/8/2019
Nagendra Vemulapalli

10. Data validation
Let’s first restrict the possible values in Column C to NO or YES using Data Validation. This prevents you from entering any other wrong values in a cell.
4/8/2019
Nagendra Vemulapalli

11. Drop Down list Creation..
List up the possible values:
Scroll to the right to get column H
In H1 type NO
In H2 type YES
Apply that list to specific cells (in this case, entire column C)
Select the whole column C
Data ribbon -> Data Tools group -> Data Validation
Change the menu of Allow to List
Click the “Source” selector and point H1:H2 OK
4/8/2019
Nagendra Vemulapalli

12. Enter Function In B1 type the following =COUNTIF(C8:C100,”NO”)
This will count the number of cells in the Range C8:C100 that contain “NO”
In B4, type the following
=COUNTIF(C8:C100,”YES”)
 This will count the number of cells in the Range C8:C100 that contain “Yes”
4/8/2019
Nagendra Vemulapalli

13. Enter Data and Functions
C8  NO
D8 Nagendra
E8  100
C9  YES
D9 Gluu
E9  300
C10  NO D10  Pete E10  500 B2=SUMIF(C8:C100,”NO”,E8:E100) B5=SUMIF(C8:C100,”YES”,E8:E100)
4/8/2019
Nagendra Vemulapalli

14. Observe…
Observe that 600 appears in B2 as SUMIF has seen the condition of “NO” met in C8 and C10. SUMIF added up the numbers that correspond to those two cells.
Now click to change NO to YES and watch how the numbers in the top change.
4/8/2019
Nagendra Vemulapalli

15. Solving with Solver It is Good for advanced “What if” Scenarios
More Advanced than “Goal Seek” Function
Determine if previously Installed
Data ribbon -> Analysis Group->Solver
4/8/2019
Nagendra Vemulapalli

16. Installing Solver Click File Tab -> Excel Options -> Add-ins
Manage: “Excel Add-ins” -> Press “Go…”
Check “Solver Add-in” OK
4/8/2019
Nagendra Vemulapalli

17. “Advertisement” Example
Advertisement type
Number of ads
Cost / ad
# of audience/ad
Magazine ?
$10,000
1,000,000
Radio
$5,000
250,000
Constraints:
We want to reach a minimum of 10,000,000 audience in total.
We have available Advertising Budget $130,000.
We have to issue at least 4 Magazine Ads.
We have to issue at least 10 Radio Ads.
Cost/ad and # of audience we can reach/ad are given as the above table.
Problem: How many Magazine Ads and Radio Ads should we run for minimum budget?
4/8/2019
Nagendra Vemulapalli

18. Mathematical Formulation
Advertisement type
Number of ads
Cost / ad
# of audience/ad
Magazine
x (unknown)
a1 (given)
b1 (given)
Radio
y(unknown)
a2 (given)
b2 (given)
What should be value of x and y so that minimizes (objective function) a1*x + a2*y (total ad cost) subject to (constraints) x >= 4 (min. # of Mag. Ad) y>= 10 (min. # of Radio Ad) a1*x + a2*y <= 130,000 (total budget) b1*x + b2*y >= 10,000,000 (total # of audience)
4/8/2019
Nagendra Vemulapalli

19. Minimization Example Download Example2 file from today’s lecture notes
Enter in E6
=B2*C2+B3*C3
Enter in E10
=B2*D2+B3*D3
Make E6 the active cell(This is what we have to minimize)
Data ribbon -> Analysis group -> Solver
4/8/2019
Nagendra Vemulapalli

20. Minimization Example Select “Min” option
Set “By Changing Cells:” to B2:B3
Click “Add” to enter a constraint
Click E6 (it should show up in “Cell Reference:”)
Set the signs to be <=
Click in “Constraint:” and click cell E7
This sets the constraint on maximum budget to spend:
Total Cost of Advertising <= Advertising Budget
Click “Add”
4/8/2019
Nagendra Vemulapalli

21. Minimization Example (cont’d)
Cell Reference: $E$10
Change the inequality to >=
Constraint: =$E$11
This sets the constraints that at least Required Audience should be reached:
Size of Audience Reached >= Required Audience
Click “Add”
4/8/2019
Nagendra Vemulapalli

22. Minimization Example (cont’d)
Cell Reference: $B$2
>=
Constraint: =$E$8
This means at least 4 Magazine Ads will be issued
Click “Add”
4/8/2019
Nagendra Vemulapalli

23. Minimization Example (cont’d)
Cell Reference $B$3
>=
Constraint: =$E$9
This means at least 10 Radio Ads will be issued)
Click “OK”
4/8/2019
Nagendra Vemulapalli

24. Minimization Example (cont’d)
4/8/2019
Nagendra Vemulapalli

25. Minimization Example (cont’d)
Click “Solve”
It should find the following
8 Magazine Ads
10 Radio Ads
4/8/2019
Nagendra Vemulapalli