Data Analysis for Managers

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Data Analysis
for
Managers
MIS 131
Prerequisites




MATH 23 or 24
MIS 1 ABC
STAT 1
Exceptions?…none
Recommended



OBE 130
COMS 103
Writing Proficiency
Required Text
Data Analysis for
Managers
[Ninth Edition]
Taylor & Hopfe
Overview


Prepared
Present
Exams
Midterms
October 7th
November 16th
Final
9:00 Dec 14th
10:30 & 1:30 Dec 16th
Final Exam
Final Exam Schedule
9:00 a.m.
Tues., Dec. 14
8:00 a.m. - 10:00 a.m.
 10:30 a.m.
Thurs., Dec. 16
10:15 a.m. - 12:15 p.m.
 1:30 p.m.
Thurs., Dec. 16
12:45 p.m. - 2:45 p.m.

Quizzes
Unannounced
Random
In-class
No
make-ups
Statistical Software

Saclink account required for free
copy of StatGraphics Plus Win ® 5.1.

MS Office 2003 may be obtained at
Bookstore  $75 (with current Student ID).
Statistical Software
 StatGraphics Plus
Win ® 5.1
 Saclink Account
 Down Load
www.csus.edu/UCCS
53304001039594
Statistical Software
Suggestion………
 Before downloading StatGraphics,
create a folder on desktop … MIS 131
 Download all StatGraphics files to the
folder.
 Then, to install StatGraphics, use icon
with blue-screen computer.
 Will need Saclink name and password.
Statistical Software
 Have
Microsoft Word, Excel, and
PowerPoint installed on your computer
… preferably MS Office 2003.
 Ensure
that “Data Analysis” is available
in Excel. [Go to “Tools”, then to “addins” and click on both “Analysis
ToolPak” options.]
Proc-List

Set e-mail for “plain text,”

Send message to:
LISTPROC@CSUS.EDU

In the message text area,
type:
SUBSCRIBE HOPFE131-L
First name Last name
END
Grading





Exams
Quizzes
Cases
Homework
Research Project
100 points
10 points
[varies]
[varies]
100 points
Total points (approximately) = TBD
Grade Percents
A
AB+
B
B-
93 - 100%
90 - 92
87 - 89
83 - 86
80 - 82
C+
C
CD+
D
DNo Incomplete (I) F
77 - 79
73 - 76
70 - 72
67 - 69
63 - 66
60 - 62
< 60
Academic Dishonesty
Pledge
Penalty

Violations of
proper ethical
conduct will NOT
be tolerated.
Course Outline
•
Schedule dates will hold
[additional assignments may occur]
•
Assignments given in class
and via MIS 131 Proc-List
generated e-mail
Cases

team effort
1-3 members

statistical analysis
• based on provided data
 Cross-Sectional
 Time Series
 Quality Control
Research Project

team effort
2-4 members

statistical analysis
• Self-provided data
 Cross-Sectional
 Time Series
Due Dates
 At
beginning of class
 “Courtesy
Extension Period”
(10 %)
Questions?
 Download
 Install
software this week.
software NLT this week.
Review Stat 1?
Data Types
 Cross
Sectional
same random
variable, multiple
observations at a
point in time
 Time
Series
same random
variable,
observations
measured at
consecutive
equally spaced
intervals of time
Variation

Common
Numerous small
causes of
variability that
are inherent to
any system,
operate
randomly or by
chance

Specific
Assignable, have
relatively large
effects on
process, occur
occasionally or
sporadic
z- or t-distribution?

Sample size?
• n  30
• n > 30

Population variance?
• known
• unknown
Stat 1 Review





parameters vs. statistics
mean
variance
sampling
sampling distribution
Stat 1 Review





normal distribution
confidence intervals
hypothesis testing
p-value
z- vs. t-distribution
Decision Results
H0: Innocent
Jury Trial
H0 Test
Actual Situation
Verdict
Innocent
Guilty
Innocent
Guilty
Correct
Error
Error
Correct
Actual Situation
Decision
H0 True
H0 False
Do Not
Reject H0
Correct
Type II
Error ()
Type I
Error ()
Correct
Reject H0
Levine, Prentice-Hall
P-value

Used to make rejection decision
•
if p-value  , reject H0
•
true value of 
Levine, Prentice-Hall
Questions?
ANOVA
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