SECTION 1: Exercises
1.1
Explain whether each of the following constitutes a population or a sample.
a. Ages of all members of a family: population
b. Number of days missed by all employees of Acme Direct during the month of July:
sample
c. Marital status
Micromark Mobile-friendly Site feasibility analysis
After reach out for the actual data from Micromark and substantial articles, I take a stand of supporting Microma
launch a mobile friendly site, reasons and financial analysis are as follow:
1. Financial
SECTION 7: Exercises
7.1
A sample of 400 observations taken from a population produced a sample mean equal to 92.45 and
a standard deviation equal to 12.20. Make a 97% confidence interval for .
7.2
Another sample of 400 observations taken from the same po
Crystal King
NYU School of Professional Studies
September 20, 2016
Professor Rhonda Knehans Drake
Tuesdays 6:10pm 8:40pm
SECTION 4: Exercises
4.1*
The following data give the number of speeding tickets issued in a San Antonio suburb in the past 12 days.
F
SECTION 7: Exercises
7.1
A sample of 400 observations taken from a population produced a sample mean equal to
92.45 and a standard deviation equal to 12.20. Make a 97% confidence interval for .
97% confidence interval: (91.1263, 93.7737)
x (z/2)(Sxbar)
92
Crystal King
SECTION 2: Exercises
2.10 Repeat the Vlookup exercise that was performed in class (data on blackboard).
2.11 There is a special Catalog Pivot exercise loaded onto blackboard. Open and read the
instructions.
2.12 There is a special Highlights
Liya Gao
The relationship between parents and children is completely different in China and the
United States. In the U.S., all children have to be economic independent when they
reach 18 years old. They should pay their college tuition by themselves, so
Liya Gao
Atlantis may have been an existed city on earth. For one thing, the origin of the story
is in two of Plato's dialogues, the "Timaeus" and the "Critias," written about 330 B.C.,
and other stories in these two dialogues have been proved to be ficti
Liya Gao
Five years ago, I was in my final year in my high school. And at this time five years
ago, I was struggling with my coming College Entrance Examination. Meanwhile, I
didnt know which college I should choose and which major was more suitable for
m
Dory: No. No, you can't. STOP. Please don't go away. Please? No one's ever stuck
with me for so long before. And if you leave. if you leave. I just, I remember things
better with you. I do, look. P. Sherman, forty-two. forty-two. I remember it, I do.
It's
2.2.14, page 38
Ratings, again.
a) The least common rating was G. It has the shortest bar.
b) The bar chart does not support this claim. These data are for a single year only. We have no
idea if the percentages of G and PG-13 movies changed from
vs.
Recommendation
BUY
SELL
DAL
UAL
United-Continental Airlines (UAL):
- Current stock price: $51.71 0.71 (9/15/2016)
- Major American airline founding member of Star Alliance, the worlds largest global
airline alliance
- 87,500 employees worldwide flying
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Rodrigo Campos
Quiz 4 Question 3
1. Test Matrix For Catalogue Campaign
TEST
8.5x11 Catalogue (control)
Smaller Dimension
Heavier Stock
Response Rate
xxx
xxx
xxx
Lift in Response Rate
xxx
xxx
*did not include Copy Strategy test because it has no Meaningful
Principles of Statistics: Midterm Exam 1
SOLUTIONS
October 19, 2016
[1] Here are the weekly payrolls for two restaurants: Mooseburgers and McTofu.
Mooseburgers
Al
Boris
Connie
Dwight
Ernie
Francois
Gloria
Horace
Isaac
Juan
McTofu
$123
$136
$144
$150
$110
IPO Calendar
Company Name
Advanced Disposal Services
AquaVenture Holdings
Coupa Software
Obalon Therapeutics
Camping World Holdings
Everspin Technologies
Azure Power Global LTD
Full Spectrum
Avista Healthcare Public Acquisition
Extraction Oil & Gas
Mammot
vs.
BUY
SELL
SCL
OBCI
CEO: F. Quinn Stepan, Jr.
CEO: Peter G. Dornau
Headquarters: Northfield, IL
Headquarters: Fort Lauderdale, FL
Largest global merchant manufacturer
Leading manufacturer of cleaning
of anionic surfactants
48 surfactants (Bio-Sof
1. Central limit theorem states that the sampling distribution of the sample
mean has a normal distribution with the mean equal to the underlying
population the same and standard deviation equal to 7.5/ sqrt(2000)=the
same/sqrt(sample quantity)?
2. Sectio
1. Hypothesis testing has an advantage over confidence intervals since you can
conduct many hypothesis tests and find out precisely how significant your results
are.
If we conduct a hypothesis test I am not locked into a confidence level.
with confidence
INSTRUCTIONS
Highlights for children has a chrismas gift campaign every year. They offer two magazines. Highlights for childr
and High 5 for younger kids.
They have two spreadsheets one that give the list details and promotion quantities for their two dro
ANSWERS TO SELECTED EXERCISES
CHAPTER 1
1.2
a. population
b. sample
c. population
d. sample
e. population
1.6
a. quantitative
b. quantitative
c. qualitative
d. quantitative
e. qualitative
1.8
a. cross-section
b. cross-section
c. time-series
d. time-series
INSTRUCTIONS
1
2
3
4
5
INSTRUCTIONS
See the data set on the next tab noted by the name "Data" and complete the steps below
Place the answers in the "answer" sheet
Variable names are noted at the top of each column. For each variable provide the type of
is