CHAPTER 3 DESCRIPTIVE STATISTICS: NUMERICAL MEASURES
Measures of central tendency: Mode, Median, and Mean.
Measures of location: quartiles and percentiles.
Measures of dispersion (variability): range, interquartile range, variance
Homework 4: SPSS
(80 Total points)
Due Date: Monday, February 2, 2015
For this assignment, please type the answers to all verbal response questions directly into the
For all hand calculations, be sure to show your work. Correct answers not su
Chapter 6 Normal Distribution
Normal probability distribution.
1. Normal Probability Distribution
Remember that a continuous probability distribution is a listing of all the values that a
continuous random variab
Locating New Pam and Susans Stores
MGSC6200 13004 Information Analysis
Professors Grigorios Livanis
November 6, 2016
Pam and Susans is a chain of discount department stores. There are currently 2
* Introduction to probability and discrete probability
* First, lets review some definitions.
* When you ask how likely it is tha
* Characteristics of Data Distributions
The Shape of a Distribution: Skewness & Kurtosis
* Measures of Central Tendency
The Arithmetic Mean
NORTHEASTERN UNIVERSITY - COLLEGE OF BUSINESS ADMINISTRATION
MGSC 2301: BUSINESS STATISTICS
This syllabus operates as our document of mutual understanding: it represents our agreement. Changes
may be made to it as our progress dictates. Such c
BANK & TRUST DATA BASE DESCRIPTION
The data set includes observations for 222 employees from Bank & Trust (B&T).
Bank & Trust (B&T) operates branches throughout North America and employs
approximately 15,000 people.
These are sample data that were collect
Homework 3: SPSS
Review and refer to the Chapter 2: SPSS LAB 1 directions, as well as the Accessing SPSS and the
Quickstart 1 Directions.
Note: For all SPSS assignments use the PASTE option to paste your commands into a syntax file. Always
Super Bowl Database Description
Super Bowl Number.
Year that the Super Bowl was played.
State in which the Super Bowl was played.
The team that was expected to win the Super Bowl. The team t
Chapter 2: SPSS LAB 1
Importing a File from Excel
First, save the Pelican Stores excel file. I recommend you create a folder
called SPSS Assignments in your MYNEU account, and name it Pelican
Next, open SPSS.
From the SPSS menu bar, select Fil
MGSC 2301 Business Statistics
Formula Sheet for Test #1
Largest Value Smallest Value = Range
Skewness: 2 times the standard error of skewness to determine whether data are roughly
Denise Spencer, PhD
Measures of Variability
* Measures of central tendency locate only the center of the
Alone, they tell us nothing about the spread (consistency
Frank Nakoh Assignment 3
6. a) No, this correlation is mostly likely caused by some other factors. Efficient management practices
could reduce length of hospital stay, but reduction in length of hospital stay could not reduce the age of
A manufacturer of cereal has a machine that, when working properly, puts 20
ounces of cereal on average into a box with a standard deviation of 1 ounce. Every
morning workers weigh 25 filled boxes. If the average weight is o
Week Four - Answers to Practice Exercises
Practice Exercises 1
2. (a) for employees of the same years of experience, each extra person he or she supervises is
associated with an extra $2000. And for employees who supervise the same number of people,
4. a) Investing all your money in a few randomly chosen stocks that make up the index
b) Investing all your money in a few randomly chosen stocks that make up the index
22. a) Assuming population percentage as 50%
STATISTICS AND DATA
What is Statistics?
1. Statistics refers to the numerical facts or to numbers: the
income of families, the age of the students, the starting
salary of a typical college graduate, and others.
TABULAR AND GRAPHICAL
Table: Ages of 40 Students
Data that are recorded in the s
Measures of Central Tendency
for Ungrouped Data
This section discusses three different
measures of central tendency:
- the Mean;
- the Median;
- the Mode.
MEAN for Ungrouped Data
Table : Ages of 40 St
VARIABLES AND THEIR
EXAMPLE: Frequency and relative frequency distributions of the number of
vehicles owned by all 2000 families living in a small town.
Table: Frequency and r
EXPERIMENT, OUTCOMES, AND
EXAMPLE: A quality control inspector picks up a tennis ball from the
production line to check whether it is good or defective. The result of
his inspection will be that the ball is e
Denise Spencer, PhD
* Descriptive vs. Inferential Statistics
* Samples & Populations
* Geeky Guy Example
* The Statistical Inference Process
* Summarizing Data in
CHAPTER 2 TABULAR AND GRAPHICAL PRESENTATIONS
Descriptive versus Inferential Statistics.
Statistical terminology population, sample, population parameter and sample statistics.
Descriptive Statistics: Tabular and Graphical Pre
Outline Chapter 2: Describing data: frequency tables, frequency
distributions, and graphic presentation
The techniques used to describe a set of data are called descriptive statistics. To put it another way,
descriptive statistics organize data to show th
MEETING TIMES AND LOCATIONS
8:00 am 9:40 am TF
9:50 am 1:23 pm TF
Hayden Hall 424
Hayden Hall 424
Dr. Svetlana Todorova
E-mail address: firstname.lastname@example.org
MGSC 2301: Business Statistics
Knowledge: Students have the opportunity to
Understand the basic concepts of probability,
descriptive and inferential statistics.
Recognize business applications where statistics can be