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
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
ASSIGNMENT 3
The project network is as follows:
Max numbers
Min numbers
A
4
0
16
D
3
4
20
C
5
Start
B
4
0
0
4
15
E
4
10 4
4
4
F
9
4
12
9
20
12
23
9
20
14
14
G
6
14
17
20
23
H
7
14
14
21
21
13
21
I
3
20
23
23
26
J
5
21
21
26
26
Finish
The activity time est
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
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
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
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
STAT 102
MIDTERM
REVIEW
QUESTIONS
1. For the following sample
3.6
5.9
4.0
7.1
8.2
7.1
7.1
8.0
a. Find the mean, median, and mode.
b. Find the range and the standard deviation.
x
3.6
5.9
4.0
7.1
8.2
7.1
7.1
8.0
Totals:
x x
x x
2
Midterm Review Questions
c
STAT 1115
Fall 2016
MAJOR ASSIGNMENT (10%)
WOODBINE
CASINO ADVERTISING CAMPAIGN
(Due in class on Monday, November 28th, 2016)
Submit in class, hard copy with name(s) and ID(s).
Assignment can be done in groups of up to 2 students.
GAMING INDUSTRY IN CANAD
LINEAR PROGRAMMING
STAT 2112
Linear programming is a model consisting of linear relationships representing a firms decision(s)
given an objective and resource constraints.
Model Formulation
Decision variables are mathematical symbols representing levels o
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
BASIC TIME-SERIES FORECASTING MODELS
STAT 2112
Components of a Time Series
Four components of a time series are trend, seasonality, cycles, and random variations.
1. Trend. This is the upward or downward movement of the data over time.
2. Seasonality. Thi
Graphic Methods
STAT 1112
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
Forecasting Models
STAT 2112
Seasonality Analysis
Time-series forecasting involves looking at the trend of data over a series of time observations.
Sometimes, however, recurring variations at certain periods (i.e., months) of the year make a
seasonal adju
Forecasting Models
STAT 2112
Multiplicative Decomposition of a Time Series
The method named CENTERED MOVING AVERAGE uses a slightly more complicated procedure to
compute the seasonal indices. Recall that moving averages smooth out fluctuations in the time
Introduction to Statistics (Types of Data and Information)
STAT 1112
Statistics is a collection of methods for planning experiments, obtaining data, and then organizing,
summarizing, presenting, analyzing, interpreting, and drawing conclusions based on th
Lecture 1 Examples.
STAT 1112
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