2) Suppose that the manager of a company has estimated the probability of a super-event
sometime during the next five years that will disrupt all suppliers as 0.23%. In addition, the
firm currently uses three suppliers for its main component, and the mana
First-born
1005
1035
1281
1051
1034
1079
1104
1439
1029
1160
Second-born
963
1027
1272
1079
1070
1173
1067
1347
1100
1204
Subject
A
B
C
D
E
F
G
H
I
J
K
L
Before
200
174
198
170
179
182
193
209
185
155
169
210
After
191
170
177
167
159
151
176
183
159
145
Based on the question - Excel Project (page 92)
Determine the mean, median, minimum, maximum.
Construct a stem and leaf plot. Describe what the data looks like.
FEMALE DATA
MALE DATA
Age
Platelets
Age
Platelets
60
24
49
62
53
18
41
21
21
19
19
58
44
52
48
Loblaw Stores in Eastern Canada (2008)
Province
Corporate Stores
Newfoundland and Labrador
13
Prince Edward Island
4
Nova Scotia
34
New Brunswick
21
Quebec
223
Ontario
155
Loblaw Stores in E
250
200
Loblaw Stores in Eastern Canada (2008)
Province
Corporat
For the exclusive use of E. Monh, 2016.
KEL156
MARK JEFFERY
A&D High Tech (A):
Managing Projects for Success
In his twelve years as a technology project manager at A&D High Tech, Chris Johnson had a
strong track record of delivering projects on time and o
School of Business
A&D High Tech (A)
Microsoft Project Case Study
You are Chris Johnson. The CIO of A&D High Tech, Matt Webb, needs to determine whether
the proposed online store project can be completed in time for the holiday shopping season. You
are ta
Arjun Patil(IMPACT)
Southwest Airlines
1. How does this company make money even when other airlines dont? What are the most
important contributors to its financial success?
A) -Southwest has always been very conservative in spending. They got a good deal
1)
(a) The sample size n is extremely large, and the number of predictors
p is small.
Better
By using a flexible approach we can able to fit data closer and in case of larger
sample size we can find a good fit when compared to inflexible approach
(b)The n
Problem 1: Descriptive Statistics in R
For the Superbowl data.
1. Plot the spread and outcome variables. Calculate means, standard deviations,
covariances, cor-relations.
mean(superbowl["Outcome"])
6.193878
sd(superbowl["Outcome"])
16.82162
mean(superbowl
1.EDA .
(a) Using visualizations, explore the predictor variables to understand their
distributions as well as the relationships between predictors.
From the visualization , the predictoes such as k and Mg have the modes around zero .where
as all the othe
PROBLEM 1 :
Y = Respondent answers yes
Q1 = Random clicker
Q2 = Truthful clicker
BY the law of total probability :
P(Y) = P(Y |RC)P(RC) + P(Y |TC)P(TC)
0.5= (0.5)*(0.5) + P(Y |TC) (0.5)
0.25/0.5= p(Y | TC)
P ( Y | TC ) = 0.5
Solution :
50 % truthful click
Dionna White
Homework
1. C
2. C
3. D
4. B
5. D
6. B
7. A
8. D
9. D
10. A
11. C
12. C
13. D
14. It costs money to remove antibiotics from the water emissions.
15. Pricing the externality by regulation. Also setting a maximum allowed antibiotic
concentratio
OPIM 173
Descriptive Statistics (Covers Chapters 2 and 3)
Betsy Page Sigman, Ph.D.
Important Statistical Definitions
A population (universe) is the collection of all members of
a group
A sample is a portion of the population selected for
analysis
A par
OPIM 173
Correlation and Covariance (and Intro to Linear Regression)
(Covers Chapter 4)
Betsy Page Sigman, Ph.D.
Scatterplots
Scatterplot
plots one quantitative variable
against another
is an effective display to look
for the following when you
have tw
OPIM 173: Business Statistics
Fall 2016
Dr. Betsy Page Sigman
NAME: _
HOMEWORK 1
This homework is due Wednesday, September 14, BEFORE class starts. Late papers (more than
5 minutes late) will not be accepted. Please do not turn in any papers to any mailbo
The Normal and Other
Continuous
Distributions
Covers Chapter 7 SDV
Betsy Page Sigman
The Standard Deviation as a Ruler
z-scores provide a standard way to compare values.
A z-score reports the number of standard deviations
away from the mean.
In this way,
Random Variables and
Probability Models
Chapter 6-SDV
Betsy Page Sigman
Expected Value of a Random Variable
random variableis a variable whose values are based on
the outcome of a random event
If we can list all possible outcomes and there are distinct
va
OPIM 173
Covers Chapter 5 SDV
Betsy Page Sigman, Ph.D.
Random Phenomena and Probability
What does probability mean?
How is probability related to the study of statistics?
Random Phenomena and Probability
Random phenomena are random, i.e., we cant
predict
Sampling Distribution
and the CLT
Covers Chapter 8 SDV
Betsy Page Sigman
Three Ideas of Sampling
Idea 1: SampleExamine a Part of the Whole
Wed like to know about an entire collection of individuals,
called a population, but examining all of them is usuall
OPIM 173: Business Statistics
Fall 2016
Dr. Betsy Page Sigman
NAME: _
HOMEWORK 3
This homework is due Monday September 26, BEFORE class starts. Late papers (more than 5 minutes late) will
not be accepted. Please do not turn in any papers to any mailbox.
1
OPIM 173: Business Statistics
Spring 2016
Dr. Betsy Page Sigman
NAME: _
HOMEWORK 4
This homework is due October 17, Monday, BEFORE class starts. Late papers (more than 5 minutes late) will
not be accepted. Please do not turn in any papers to any mailbox.
CHAPTER 1: OPERATIONS AND PRODUCTIVITY
TRUE/FALSE
1.
Some of the operations-related activities of Hard Rock Caf include designing meals and analyzing
them for ingredient cost and labor requirements.
True (Global company profile, easy)
2.
The production pr