STAT 1112
Major Assignment
Student Name: _
Student Number: _
Bianca Frantini, 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 statisti
STAT 1112-YD
Abigail Natnat
Winter 2016
N01100811
Assignment # 1
1.
a.) BAR GRAPH
The Bar Graph of the 2015 Annual Report of the Procter & Gamble Company
30,000
25,000
20,000 26,157
29,831
15,000
16,001
10,000
9,725 14,900 5,773
5,000
0
Net Sales of 2015
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
STAT 2112
ASSIGNMENT 2
Anna Broderick is the dietician for Humber College basketball team, and she is attempting to
determine a nutritious lunch menu for the team. She has set the following nutritional guidelines
for each lunch serving.
Between 1500 and 2
Homework #1 (Solutions)
1.
STAT 102
Determine whether the given value is a statistic or a parameter.
a. A sample of Humber female students is selected, and the average (mean) height is 165 cm.
Answer: Statistic
b. 53% of those questioned in a consumer sur
Lecture 1 Examples.
STAT 1112
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
Descriptive Statistics,
Frequency Distribution
RSMT 1500 ( quantitative research Method)
Based on ; Elementary Statistics
Picturing the World (6th edition)
Prepared by;
Mona BayaniKeyvani
Descriptive Statistics
Presenting a data in a frequency
distributi
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
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
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
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
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 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
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
Descriptive Statistics,
Measures of Central Tendency
RSMT 1500 ( Quantitative Research Methods)
Based on ; Elementary Statistics
Picturing the World (6th edition)
Prepared by;
Mona BayaniKeyvani
Measures of Central Tendency
A
of central tendency is a valu
STAT 1112 Quiz
1. In a particular country, household income is not normally distributed, with a mean of $12000 per
year, and a standard deviation of $8000. If you take a sample of 48 households in this country,
what is the probability that the sample mean
Hypothesis Testing;
Two samples
RSMT 1500 ( quantitative research Method)
Based on ; Elementary Statistics
Picturing the World (6th edition)
Prepared by;
Mona BayaniKeyvani
Two Sample Hypothesis Test
Compares two parameters from two
populations.
Independe
Description of numerical data Notes
Arranging data
Frequencies (relative and cumulative), graphical
presentation
Measures of central tendency and variance
Assessing normality
Grouping
Sorting data
Groups (5-17 gr.) according researchers criteria.
To asses
Hipotheses testing Notes
H0: 1=2; p1=p2; (RR=1, OR=1, difference=0)
HA: 12; p1p2 (two sided, one sided)
Significance level (agreed 0.05).
Test for P value (t-test, 2 , etc.).
P value is the probability to get the difference (association), if
the null hypo
Generating a flat file Notes
Process of flattening a file is called denormalization
Several relations are joined together to make one
Possible with any finite set of finite relations
Problematic: relationships without pre-specified number of
objects
Examp
Transforming ordinal to Boolean Notes
Simple transformation allows
ordinal attribute with n values
to be coded using n1 boolean attributes
Example: attribute temperature
Better than coding it as a nominal attribute
Metadata
Information about the data that
Populations and Samples Notes
Population: Collection of all possible entities of interest
Described by Parameters
Sample: Subset of collection
Described by Statistics
Statistical Inference
Art and science of using samples to make conclusions about
populat
Introduction to biostatistics Lecture Notes
1.
Basics
2.
Variable types
3.
Descriptive statistics:
4.
Categorical data
Numerical data
Inferential statistics
Confidence intervals
Hipotheses testing
STATISTICS can mean 2 things:
- the numbers we get when we
Ratio quantities Notes
Ratio quantities are ones for which the measurement
scheme defines a zero point
Example: attribute distance
Ratio quantities are treated as real numbers
Distance between an object and itself is zero
All mathematical operations are a
MEASURES OF VARIANCE Notes
Min and max
Range
Standard deviation sqrt of variance (SD)
Variance - V= (xi - x)2/n-1
Interquartile range (Q3-Q1 or 75%-25%) IQRT
What measures are to be used for sample description?
If distribution is NORMAL
Mean
Variance (or