Categorical, Qualitative
Nominal- no apparent order
Ordinal- categories, can be
ranked(use bar chart)
Numerical, Quantitative (histogram)
Discrete
Continuous
Cross Sectional
Same point and time
Time Series
Measured over time
Population parameter is:
Sampl
95% CI interval problems
5-number summary
Min. Q1 Median Q3 Max
Finding outliers:
high = Q3 + 1.5(IQR)
low = Q1 + 1.5(IQR)
IQR = Q3-Q1
50% of _ is between Q1 and Q3
point estimate for estimating the true
proportion
x/n ex.
Margin of Error
Whats the 95% ME
Understanding the data Assignment (Reflection 3)
1. There are potential problems that need to be fixed for some of the 5 key independent
variables. The first is YrsEmployed, which was entered in by the population as a
numerical value which shouldnt cause
COMM 103: Exploring Interpersonal Communication
Department of Communication & Rhetorical Studies
Duquesne University
Fall 2016
10:0010:50 a.m. MWF
Instructor: Dr. J.M.H. Fritz
Office Hours: 1:30-3:00 MW and by appointment (e-mail is the best way to reach
DUQUESNE UNIVERSITY
Summer 2016 Undergraduate Class Offerings
Bayer School of Nat & Env Sci
Subj
Crse
Sect
CRN
Title
BIOL
111
BIOL
Credits
Day
Time
Campus
Building
Room
Instructor
Start
Date
End
Date
01
30289
Bio I:
Cells,Genetics,Developm
4
MTWR
0900 11:
Brief Introduction:
The purpose of this paper is to determine the major fatal accidents as measured by the
insurance such as teen drivers, unlicensed drivers, the alcohol level in blood etc hence, in
order to determine their individual significances the c
Duquesne University
AJ Palumbo School of Business
QSIS 281
Hypothesis Testing Procedures
A) P value procedure (for proportion test)
1. State the null and alternative hypotheses. Be sure the alternative hypothesis is of the
correct form given the problem c
Data Essentials L2 - Model
Description
Netflix is an online platform where users can search for and view movies and TV shows.
Your task specifically focuses on movies and storing information about what movies each
customer has watched. When a user watches
Systems Analysis and Design ISYS 381w
FALL 2016
Duquesne University
A.J. Palumbo School of Business Administration
Dr. Kathleen S. Hartzel
928 Rockwell Hall
E-mail: [email protected]
Office: 456 Rockwell Hall
Office Hours: Mondays & Wednesdays:1:30 3:00 PM
12 Months Ended
May 31, 2016
DOCUMENT AND ENTITY INFORMATION - USD ($)
Document and Entity Information [Abstract]
Document Type
Amendment Flag
Document Period End Date
Document Fiscal Period Focus
Document Fiscal Year Focus
Trading Symbol
Entity Registran
DUQUESNE UNIVERSITY
QSIS 281/284 Statistics Tutor Information Sheet
Fall, 2016
1. There are two statistics tutors available to help students this semester. Here are
their names, email addresses and hours. Tutors will be located in 801G
Rockwell Hall. Plea
Technology
Company Name
24/7 REAL MEDIA INC
ACS MOTION CONTROL LTD
DYNTEK INC
FSI INTL INC
IMERGENT INC
INX INC
KEY TRONIC CORP
KOMAG INC
LATTICE SEMICONDUCTOR CORP
MAGAL SECURITY SYSTEMS LTD
NEXTEST SYSTEMS CORP
NOVATEL INC
OPEN TEXT CORP
PACIFIC INTERNE
Lecture notes, August 22 (first class)
REVIEW: 6.1
PAGE 297: time between Sent Text Messages
Scenario: people send text messages, what is the gap of time between
messages.
Given: the average in the population is 15 minutes and the standard
deviation is al
Technology
Company Name
24/7 REAL MEDIA INC
ACS MOTION CONTROL LTD
DYNTEK INC
FSI INTL INC
IMERGENT INC
INX INC
KEY TRONIC CORP
KOMAG INC
LATTICE SEMICONDUCTOR CORP
MAGAL SECURITY SYSTEMS LTD
NEXTEST SYSTEMS CORP
NOVATEL INC
OPEN TEXT CORP
PACIFIC INTERNE
SEPTEMBER 7TH
Discussion of equal variance starts on p. 386
WE should ONLY use Equal Variance tests if we are VERY SURE
That the variances are indeed equal in the population.
Equal Variance tests give a NARROWER INTERVAL and therefore they
Make it easier
Each sheet contains a yellow cell for each answer.
You may use blank areas in the spreadsheet for intermediate steps.
Put your final answer in the yellow cell. For numeric answers, do no
Instead, enter the formula that yields the answer.
What is
What is
3
Each sheet contains a yellow cell for each answer.
You may use blank areas in the spreadsheet for intermediate steps.
Put your final answer in the yellow cell. For numeric answers, do no
Instead, enter the formula that yields the answer.
For example:
What
01/07/2016
Relationships
Deterministic- easily understood
o true on average and in every case
o ex. If you raise the temperature of a liter of water the water
will expand by some fixed degree every time
Stochastic- not easily understood
o true on averag
Each sheet contains a yellow cell for each answer.
You may use blank areas in the spreadsheet for intermediate steps.
Put your final answer in the yellow cell. For numeric answers, do no
Enter the formula that yields the answer rather than typing the num
Each sheet contains a yellow cell for each answer.
You may use blank areas in the spreadsheet for intermediate steps.
Put your final answer in the yellow cell. For numeric answers, do no
Instead, enter the formula that yields the answer.
What is
What is
3
Chapter 1 Exploring Data
Statistics science of data
Individuals Objects described by a set of data (ex. People, animals, etc)
Variables Characteristics of an individual (ex. Weight, height, gender, left/rt handed, etc)
Categorical Variables place individu
Who shops online more?
Sorority women or Fraternity men?
CHELSEA COVERT & STEPHANIE PELLEGRINO
Why we chose our topic
Interest in shopping and habits that come along with it
Gender comparison
Greek life
Online versus shopping in physical stores
Who we sur
BStat 284
Computer Lab II - Demonstration
Comparing Two Independent Population Proportions
and The Chi-Square Test for Independence
Objectives:
To learn to:
1. Create a contingency table from raw data and conduct a Chi-square test for
independence.
2. Use
PROBLEM
The main problem is how FormPrint should market its newest orthopedic 3D printing system, the
Ortho500.
SITUATION ANALYSIS
The Ortho500 is FormPrints newest 3D printer that prints custom exoskelatal splints,
braces, and casts that conform to a pat
Nick Foles
Peyton Manning
Russell Wilson
Aaron Rodgers
Drew Brees
Philip Rivers
Josh McCown
Tony Romo
Ben Roethlisberger
Sam Bradford
Mike Glennon
Matt Ryan
Matthew Stafford
Colin Kaepernick
Jay Cutler
Cam Newton
Tom Brady
Jake Locker
Ca
Genetics Problems (20 points)
The common fruit fly, Drosophila melanogaster, has been the subject of genetic study for over
100 years. In fruit flies, curly wings are dominant to straight wings.
1. How would you designate the genotype of a homozygous curl