Assignment 3
Online Shopping
Several studies have found that the frequency with which shoppers browse internet retailers is related
to the frequency with which they actually purchase products and/or services online. In the Assignment
3 Data file, the data
Lecture Examples 2.
STAT 5002
In Exercises 1-13, identify which of these types of sampling is used: random, stratified, systematic,
cluster, or convenience.
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
When she wrote Marriage and Divorce: Legal and Psycholo
Lecture 2 Examples.
STAT 5002
In Exercises 1-6, in each one identify a discrete value and a continuous value.
1.
The Designer Fabric Outlet in Toronto ordered 17 new categories of fabric in France and Italy.
They estimate that it will take about 4 weeks f
Homework #3 (Part 3)
STAT 2112
1. Jeffrey Mogul is a Hollywood film producer and he currently evaluating a script for a movie by
a new screenwriter and director, Betty Jo Thurston. Jeffrey knows that the probability of a film by a
new director being a suc
Homework #2 (Part 1)
STAT 2112
1. Janet Kim, president of Kim Manufacturing, Inc., is considering whether to build more
manufacturing plants in Manitoba. Her decision is summarized in the following table:
Alternatives
Favourable Market ($)
Unfavourable Ma
Homework #3 (Part 2)
1.
STAT 2112
The Humber Company is going to introduce one of three new products: a widget, a hummer, or
a nimnot. The market conditions (favourable, stable, or unfavourable) will determine the profit
or loss the company realizes, as s
Homework #6 (Part 2)
1.
STAT 2112
A hospital dietitian prepares breakfast menus every morning for the hospital patients. Part of
the dietitians responsibility is to make sure that minimum daily requirements for vitamins A
and B are met. At the same time,
Homework #4 (Part 2)
STAT 2112
1. The Munchies Cereal Company makes a cereal from several ingredients. Two of the
ingredients, oats and rice, provide vitamins A and B. The company wants to know how many
ounces of oats and rice it should include in each bo
Homework #6 (Part 1)
1.
STAT 2112
(Transportation problem) The Roadnet Transport Company has expanded its shipping
capacity by purchasing 90 trailer trucks from a competitor that went bankrupt. The company
subsequently located 30 of the purchased trucks a
Homework #3 (Part 1)
1.
STAT 2112
An investor must decide between two alternative investments stocks and bonds. The return for
each investment given two future economic conditions is shown in the following payoff table.
Investment
Economic Conditions
Good
Homework #1
STAT 2112
1. Even though independent gasoline stations have been having a difficult time, Susan Solomon
has been thinking about starting her own independent gasoline station. Susans problem is to decide
how large her station should be. The ann
Homework #5 (Part 2)
STAT 2112
1. (Investment decision) The Turner-Laberge Brokerage firm has just been instructed by one of
its clients to invest $250 000 for her, money obtained recently through the sale of land holdings in
British Columbia. The client
Probability
STAT 5002
An event is any collection of results or outcomes of a procedure.
A simple event is an outcome or an event that cannot be broken down into simpler components.
A sample space for a procedure consists of all possible simple events. Tha
The Normal Distribution
STAT 5002
Introduction
A random variable is a numeric function that assigns probabilities to different events in a sample space.
A random variable whose possible values cannot be enumerated is a continuous random variable.
The Norm
FORMULAE & TABLES FOR STAT 5002 FINAL EXAM
population mean, populationstandard deviation
n
x sample mean ; x
x
i 1
i
, where n sample size
n
n
s sample standard deviation; s
x
i 1
i
x
2
n 1
df number of degrees of freedom
Probability: Pevent
The num
90% Confidence Interval
Mean
Standard Error
Median
Mode
Standard Deviation
Sample Variance
Kurtosis
Skewness
Range
Minimum
Maximum
Sum
Count
Confidence Level(90.0%)
279.85
25.8755636
245
192.75
129.377818
16738.61979
6.45374479
2.079552618
655
95
750
6996
STAT 5002
Major Assignment
Student Name: _
Student Number: _
Bianca Simeoni, a Humber College graduate who always had only perfect marks in statistics, was
hired by the famous Healthy Life medical insurance company. Bianca is assigned to conduct statistic
A.
Online Shopping
600
500
400
Browsing TIme (Min/week)
f(x) = - 7.07x + 551.94
R = 0.62
300
200
100
0
10
20
30
40
50
60
70
80
Age of Respondent
Yes, it does seem as though the variances are linearly related. Based on the scatter diagram, there is a
downw
Practice Test
STAT 5002
1.
A real estate broker wants to analyze the situation on the real estate market in Toronto. She
randomly selected 10 one-bedroom condos sold in GTA in January-February 2017. See the table
below (selling prices are given in $thousa
Introduction to Statistics (Types of Data and Information)
STAT 5002
Statistics is a collection of methods for planning experiments, obtaining data, and then organizing,
summarizing, presenting, analyzing, interpreting, and drawing conclusions based on th
STAT 5002
Estimating a Population Mean: Available
Definitions
An estimator is a sample statistic (such as the sample mean x ) used to approximate a population
parameter. An estimate is a specific value or range of values used to approximate some populatio
STAT 5002
The Central Limit Theorem
In a random sample, members of the population are selected in such a way that each individual has an
equal chance of being selected.
A simple random sample of n subjects is selected in such a way that every possible sam
Measures of Central Location
STAT 5002
A measure of central location is a value at the centre or middle of a data set.
The arithmetic mean of a set of scores is the value obtained by adding the scores and dividing the total
by the number of scores. This p
Graphic Methods
STAT 5002
Bar and Pie Charts
Example 2.4: The following table lists the per capita beer consumption for each of ten countries around
the world.
Country
Consumption (litres/year)
Australia
109.9
Belgium
93.0
Canada
68.3
Czech Republic
156.9
STAT 2112
ASSIGNMENT 1
Property Purchase Strategy (from the textbook, data altered)
Gordon Frantini, president of Lakeshore Development Corporation,
is considering submitting a bid to purchase property that will be sold
by sealed bid at a city tax foreclo
Homework #2 (Part 3)
STAT 2112
The Americo Oil Company is considering making a bid for a shale oil development contract to be
awarded by the federal government. The company has decided to bid $110 million. The company
estimates that it has a 60% chance of
Point Pattern Analysis Notes
Analysis of spatial properties of the entire body of points rather
than the derivation of single summary measures
Two primary approaches:
Point Density approach using Quadrat Analysis based on
observing the frequency distribut