Chapter 2 Solutions
2.1 (a) The 30 students. (b) Attendance and score on the final exam. (c) Score on the final is
quantitative. Attendance is most likely quantitative: number of classes attended (or missed).
2.2 When students are classified like this, PS
Chapter 1 Solutions
1.1 Working in seconds means avoiding decimals and fractions.
1.2 Who: students enrolled in the course. What: scores on exams, homework, and project. Why:
to calculate grades for the course.
1.3 Exam1 = 95, Exam2 = 98, Final = 96.
1.4
Chapter 4 Solutions
71487 09984 29077 14863
4.1 Ten of the first 20 digits on line 121 correspond
TTHHT HTTHH HTHTT THHHT
to heads, so the proportion of heads is 10/20 = 0.5.
While this sample obtained the intuitive half heads and half tails, with such a
Chapter 3 Solutions
3.1 There could be many reasons: she may have already contracted flu and didnt know it, for
example.
3.3 A statement simply that (s)he didnt use performance-enhancing drugs is meaningless.
(Consider Lance Armstrong and other athletes.)
II. Subdisciplines in Sociology
Social Institutions
4. Economic Institution
Needs Fulfilled by Economic Institution
Means of Gathering Resources
Means of Distributing Resources
Provision of Population Sustenance
Needs
Provision of Property for Inequal
STAT1031: In-Class Assignment 10 (04/03/2017)
Name:
(1) A randomdigitdialing sample of 1750 adults found that 1140 used some form of prescription
medication.Ofthosewhousedprescriptiondrugs,940saidtheyareconcernedaboutthecurrentstateof
healthcare;320ofthe6
STAT1031: In-Class Practice 7 (03/10/2017)
Name:
1. When engaging in weight-control (fitness/fat burning) types of exercise, a person is expected
to attain about 60% of their maximum heart rate. For 20-year-olds, this rate is approximately
120 bpm. A simp
STAT1031: In-class Practice 6 (03/01/2017)
Name:
1) An agricultural researcher planted 25 plots with a new variety of yellow corn. The average yield from
these 25 plots was 152 bushels per acre. Assume that the yield per acre for the new variety of yellow
STAT1031: In-Class Assignment 10 (03/31/2017)
Name:
1. There is growing concern over a possible causal link between consumption of diet soda and
obesity. Gallup took in 2013 a nationally representative sample of 2027 adults and asked them
about their soda
STAT1031: In-Class Assignment 12 (04/10/2017)
Name:
(1) Researchers selected a random sample of 4049 medical records of adults diagnosed with
gum disease. In all, 2368 were current smokers, 828 were former smokers, and 853 never
smoked regularly. Do the d
STAT1031: Practice Assignment 3 (2/17/2017)
Name:
(1) A random variable X is normally
distributed. The density curve of X
is given below. What could be the
best approximate mean and the
standard deviation of X based on
the graph?
Ans: =150, =15 .
[SD is j
Stat-1031 (Introduction to Statistics) - Test 2 Review with Answers
Your second semester test will be over material relevant to probability and sampling distributions as well as the
idea of statistical inference.
The test will consist of about 30 question
STAT1031: Class Practice 1
Name:
In an area of the Great Plains, records were kept on the relationship between the rainfall (in inches) and the
yield of wheat (bushels per acre). The data is given below.
X
10.5
8.8
13.4
12.5
18.8
10.3
7.0
15.6
16.0
Y
50.5
Elementary Statistics Exam 1
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Statistic
Descriptive statistics
Inferential statistics
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the science of collecting, describing,
interpreti
Introduction to Epidemiology
Homework Assignment #2:
Design Strategies and Statistical Methods in Descriptive Epidemiology
10 points
4.1 The variables in the table represent what type of data?
4.2 Describe the extent of the public health problem of female
3.5 Ethics
The production of data raises ethical questions. We dont mean questions when the data
are faked or biased.
The most complex issues of data ethics arise when we collect data from people. This
data could involve medical information, financial inf
3.5 Ethics
The production of data raises ethical questions. We dont mean questions when the data
are faked or biased.
The most complex issues of data ethics arise when we collect data from people. This
data could involve medical information, financial inf
Kyle Haskins
3/21/17
Front-line Employee Interview
Understanding the Job
For my front-line employee interview, I was able to interview my roommate, Ryan, who is a valet
for a company called Towne Park. Towne Park is contracted by a variety of hotels and o
Homework #9 ANOVA Analysis INFO329/MKTG329
PART A: The Science of Us 5 pts
Please read the article The Science of Us and answer the following questions:
If you lived in New York, would you want to be part of the Kavli HUMAN Project? Why or why not?
Wher
KYLE HASKINS
Xavier University 3929 Regent Avenue, Cincinnati, OH 45212 | | C:
407-409-1383 [email protected]
To whom it may concern:
The job offered by Veritiv intrigued me immensely. I am confident that this job would be a good fit for
my analytic
KYLE HASKINS
Xavier University 3929 Regent Avenue, Cincinnati, OH 45212 | | C:
407-409-1383 [email protected]
To whom it may concern:
The job offered by Meggitt intrigued me immensely. I am confident that this job would be a good fit for
my analytic
KYLE HASKINS
Xavier University 3929 Regent Avenue, Cincinnati, OH 45212 | | C:
407-409-1383 [email protected]
To whom it may concern:
The job offered by Xavier University intrigued me immensely. I am confident that this job would be a
good fit for m
KYLE HASKINS
Xavier University 3929 Regent Avenue, Cincinnati, OH 45212 | | C:
407-409-1383 [email protected]
To whom it may concern:
The job offered by Meggitt intrigued me immensely. I am confident that this job would be a good fit for
my analytic
KYLE HASKINS
Xavier University 3929 Regent Avenue, Cincinnati, OH 45212 | | C:
407-409-1383 [email protected]
To whom it may concern:
The job offered by CDK Global intrigued me immensely. I am confident that this job would be a good fit
for my analy
March10,20162:22p.m.
The Scientists Who Are After the Personal Data
of 10,000 New Yorkers
ByMelissaDahl
Photo:MarioTama/GettyImages
Notsolongago,anastronomerwhowantedananswertoacelestialquestionwouldbooktimeona
telescopeatauniversityandstudyonlythegalaxie
KYLE HASKINS
Xavier University 3929 Regent Avenue, Cincinnati, OH 45212 | | C:
407-409-1383 [email protected]
To whom it may concern:
The job offered by TriHealth intrigued me immensely. I am confident that this job would be a good fit for
my analyt
Suggested Review Materials
Looking at Data - Distributions
- Variables categorical and quantitative
- Distribution of a variable tells what values it takes & how often the values occur
- Displaying distributions with graphs
- Categorical variables
. Bar g
Chapter 3
Producing Data
Introduction to the Practice of
STATISTICS
EIGHTH
ED I TI ON
Moore / McCabe / Craig
Lecture Presentation Slides
Chapter 3
Producing Data
Introduction
3.1 Sources of Data
3.2 Design of Experiments
3.3 Sampling Design
3.4 Toward Sta
Chapter 1
Looking at DataDistributions
Section 1.1 Data
How do these people vary?
These people vary in:
o Heights
o Weights
o Genders
o Ages
o Nationalities
o Hair colors
o Incomes
o Educational degrees
o
Cases Each person in this group of people is call
Chapter 2 Looking at DataRelationships
2.1: Scatterplots
2.2: Correlation
2.3: Least-Squares Regression
2.4: Cautions about Correlation and Regression
2.5: Data Analysis for Two-Way Tables
2.6: The Question of Causation
How to Study Data Quickly?
Chapter