1.
QUESTION 1
TABLE 17-1
A local newspaper has 10 delivery boys who each deliver the morning paper
to 50 customers every day. The owner decides to record the number of
papers delivered on time for a 10-day period for one of the delivery boys and
construct
BA 240
W. Li
Answer Sheet
QUIZ 2
Show your work clearly and completely.
Round to the THRID decimal place.
Problem 1:
Ordered:
Consider following sample of 10 quantitative measurements:
32
28
28
17
38
30
37
23
27
19
17
19
23
27
28
28
30
32
37
38
a) Calcula
BA 240
W, Li
Answer Sheet
QUIZ 4
Show your work CLEARLY and COMPLETELY!
Problem 1:
Suppose that the probability distribution of a random variable x can be described by the formula
p( x)
x
for each of the values x =1, 2, 3, 4, and 5, e.g., p(x = 2) = 2 /1
BA 240
W. Li
Answer Sheet
QUIZ 3
Show your work clearly and completely.
Problem 1:
We surveyed 100 workers at ABC Inc. We found that 70% are Male and 10% hold an MBA
degree. In addition, among those who have MBA degrees, 60% of them are Male. Construct a
BA 240
W. Li
Answer Sheet
Quiz 1
Problem 1:
The slope of a river delta region can sometimes be accurately predicted from knowledge
of the typical size of stones found there. With this in mind, a geographer studying South
America would like to estimate the
1.15
a. The relevant population is all United States citizens with a valid telephone number.
b. The variable of interest is the opinion of each individual whether or not the United States was
justified in invading Iraq. It is qualitative.
c. The sample is
Justin Hanlon
Chapter 1
DA310 Sept. 25th 2015
4. Suggest some metrics that a manager of a fast-food
restaurant, such as McDonalds or Chipotle, might
want to collect. Describe how the manager might use
the data to facilitate better decisions.
Some of the d
Loan Purpose
Small Appliance
Education
Other
New Car
Business
Furniture
Used Car
Business
Small Appliance
Other
Business
Small Appliance
New Car
Large Appliance
Used Car
Business
Small Appliance
Business
Business
New Car
Small Appliance
New Car
Used Car
U
Ohio Education Performance Results Year 2000
Writing
School District
Indian Hill
Wyoming
Mason City
Madiera
Mariemont
Sycamore
Forest Hills
Kings Local
Lakota
Loveland
Southwest
Fairf ield
Oak Hills
Three Rivers
Milford
Ross
West Clermont
Reading
Princeto
A.
1.8
0.002737
The probability that the sample mean is less than 1,995 is 0
B.
2002.307
The mean overfill or more that will occur 10% of the time is 2002.307
Confidence Level for Proportion
Sample proportion (pp )
Sample Size
0.05
0.5388235294
850
Confid
6. HHH, HHT, HTH, THH, TTH, THT, HTT, TTT. All out comes must be >or =l to 1.
A) A is the event exactly 2 heads
P(A)= Number/Total
P(A)=3/8
B) P(B)= 4/8
1/2
C ) P(C) = 4/8
D) P(A or B) = P(A)=P(B)
P(A)=3/8 P(B)=1/2
3/8 + = 7/8
E) P(A or C) =P(C)
1/2
REGIO
BA240StatisticalAnalysis
Chapter1and2
WinnieLi
May 14, 2014
BA 240 - Winnie Li
1
Chapter1:Statistics,Data,
andStatisticalThinking
The Science of Statistics
Fundamental Elements of Statistics
Types of Data
Collecting Data
May 14, 2014
BA 240 - Winnie Li
2
BA240StatisticalAnalysis
Chapter11Part1
WinnieLi
May 14, 2014
BA 240 - Winnie Li
1
MeasureofAssociation:
Correlation
Coefficient of
correlation: r
Measure of the strength of the linear
relationship between two quantitative
variables x and y.
r near +1: St
BA240StatisticalAnalysis
Chapter4
WinnieLi
May 14, 2014
BA 240 - Winnie Li
1
Chapter4:DiscreteProbability
Distribution
Random Variables
Probability Models for Discrete Random Variables
Binomial Probability Distribution
May 14, 2014
BA 240 - Winnie Li
2
Ra
BA240StatisticalAnalysis
Chapter3
WinnieLi
May 14, 2014
BA 240 - Winnie Li
1
Chapter3:Probability
Basic Concepts and Definitions
Probability Rules for Mutually Exclusive Events
Intersection and Union
Conditional Probability and Independence
(Optional)
Con
BA240StatisticalAnalysis
Chapter1and2
WinnieLi
April 17, 2014
BA 240 - Winnie Li
1
Chapter1:Statistics,Data,
andStatisticalThinking
The Science of Statistics
Fundamental Elements of Statistics
Types of Data
Collecting Data
April 17, 2014
BA 240 - Winnie L
BA240 Statistical Analysis - Math Skills Assessment
Solution: April 1, 2012
by Winnie Li
This assessment provides guidance on your math skills and preparation for taking a
statistics course. The assessment is divided into three sections: 1) Arithmetic and
Winter 2007 BA 240
W. Li
Homework 8 Solution
Homework 8 Solution
Problem 8.62:
Problem 8.64:
1
Winter 2007 BA 240
W. Li
Homework 8 Solution
Problem 8.130
2
Winter 2007 BA 240
W. Li
Homework 8 Solution
Problem 8.135:
Problem 8.145:
3
BA240
TeamProjectGroupList
W.Li
Group 1: Baseball Player Salary:
This dataset contains the 1992 salaries for that population, along with performance
measures for each of 337 players from 1991. See
http:/www.amstat.org/publications/jse/datasets/baseball.tx
T eam Member Evaluation Form
P reston ORourke
Evaluation
Team Member 1
Team Member 2
C ategory
Name : David Cain
P reparation:
Is he/she well
p repared when
meeting
together?
Collaboratio
n:
I s he/she able
to attend your
g roup
meetings on
t ime?
Helpnes
Team Member Evaluation Form
Preston ORourke
Evaluation
Category
Team Member 1
Team Member 2
Name: David Cain
10. As this is an online class, most of the
communication was through the group discussion
board. David was responsive to group needs and
able to
BA 240
W. Li
Regression Handout
SUMMARY
OUTPUT
Regression Statistics
Multiple R
0.948413871
R Square
0.899488871
Adjusted R
Square
0.882737016
Standard Error
0.654208646
Observations
8
ANOVA
df
1
6
7
SS
22.98081629
2.567933713
25.54875
MS
22.98082
0.42798
BA 240
W. Li
Score: _of 10
QUIZ 5
Show your work CLEARLY and COMPLETELY!
Name: _
Draw the Normal Curves, highlight the corresponding areas!
Round to SECOND Digits after Decimal Point for Z-scores
Keep the Original FOUR digits after the Decimal Point for P