Stat 2225
Spring 2017
Assignment #3 (Answer Key)
1.
[7]
(a) The pairwise difference of cost between kitchen and master bedroom.
[1]
(b) Wilcoxon Signed rank test!
[1]
(c) We use Kitchen Master bedroom as the difference. Hence MD is the median of the diffe
Stat 2225
Spring 2017
Assignment #4 (Answer Key) (Total 31 marks)
1.
[15]
(a) Because there are two explanatory variables but only one is a factor (of course the price isnt one of them, it
is the response variable), we cant use a completely randomized des
STATISTICS 2225
Mid-term Test #1
Feb 23, 2017
Name _Answer Key_
(Please Print)
1.
(a)
Student Number:_007_
Because when we do hypothesis test, we assume the null hypothesis is correct ( Ho: P Po), but there is no
such assumption when we construct the conf
Stat 2225
Spring 2017
Assignment #3 (due March 02) (Total 64 marks)
(Note: Youre allowed to use SGC to do all the calculations if you wish. If you do in this way, you MUST
include the SGC result. For any ANOVA question, including an ANOVA table is a MUST!
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
1
Topic 6
Simple Linear (Least-Squares) Regression
& Correlation
Scatter Plot (2.1)
Measures of Linear Relationship between T
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
Topic 5 (Part 2)
Experimental Designs
An Introduction to Experimental Design
(3.2)
Completely Randomized Design (3.2,
15.1)
R
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
Topic 5 (Part 1)
Analysis of Variance
Data Analysis Method (Ch. 14)
An Introduction to Analysis of Variance
(14.1)
One-Way A
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
Optional Topic 1
Inferences About Population Variances
Hypothesis Test about the Variances of Two
populations (7.3, but not p
Math 2310 - Quantitative Methods In Business
Pichmony Anhaouy
Department of Mathematics & Statistics
Langara College
Chapter 9 : Project Scheduling: PERT/CPM
Part B
Pichmony Anhaouy (panhaouy@langara.ca)
Math 2310 Notes - Chapter 9, Part B
Slide 1
More Ex
Math 2310 - Quantitative Methods In Business
Pichmony Anhaouy
Department of Mathematics & Statistics
Langara College
Chapter 9 : Project Scheduling: PERT/CPM
Part A
Pichmony Anhaouy (panhaouy@langara.ca)
Math 2310 Notes - Chapter 9, Part A
Slide 1
PERT/CP
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
Topic 5 (Part 1)
Analysis of Variance
Data Analysis Method (Ch. 14)
An Introduction to Analysis of
Variance (14.1)
One-Way A
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
Topic 5 (Part 2)
Experimental Designs
An Introduction to Experimental
Design (3.2)
Completely Randomized Design (3.2,
15.1)
R
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
Topic 4
Nonparametric Tests
Sign Test (7.1 p.410-411)
Wilcoxon Signed Rank Test (16.2)
Wilcoxon Rank Sum Test (16.1)
Slide2
N
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
Topic 2
Inferences about Means and
Proportions With Two Populations
Estimation of the Difference between the
Means of Two Pop
The Practice of Statistics
for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
1
Topic 1 (part 1)
Confidence Intervals
x
x
x
Introduction
Interval Estimation of a Population Mean:
Large-Sample Case
Determ
The Practice of Statistics for
Business & Economics
Third Edition
Moore
McCabe
Alwan
Craig
Duckworth
Slides Prepared by Eugene Li
Optional Topic 1
Inferences About Population
Variances
Hypothesis Test about the Variances of
Two populations (7.3, but not p
Phoebe's Photo Studio
Tax Detail 06/30/2017 to 07/31/2017
Revenues
GST
GST Refundable
Total Refundable GST
Total GST
Expenses
GST
GST Refundable
Total Refundable GST
Total GST
Net refundable GST collected from revenues less paid on expenses: 933.20*
* Doe
2: Sampling Methods, Data
Collection & Bias
STAT 1123
Population
Population:
refers to the group of subjects we are interested
in or we want to know information from.
Another common name of it is target population.
Population size, : The number of subj
1b: Statistical Studies
STAT 1123
Objective (of a study)
An objective is simply a statement or a sentence outlining what you plan to do in
the study. A study can have several objectives.
A proper objective should answer the four Ws who, what, where and wh
1. Gender (circle one):
Male
Female
1. Gender (circle one):
Male
Female
2. What year and month were you born?
Year _Month _
2. What year and month were you born?
Year _Month _
3. How many courses are you taking this semester?
1
2
3
4
5
How many days in a
BCAP 1200 CONCEPTS ASSIGNMENT
20 MARKS
TEAM MEMBER #1: _
TEAM MEMBER #2: _
Work in pairs or on your own
The due date is posted on D2L and is on the last page of the course outline
Late submission is not accepted + receives a zero
You have $1,500 to buy a
Stats 1124-004 Project Proposal
Population of Interest: All Full-time Langara Students
Topic: In this statistical experiment, we want to find out who amongst Males and Females spend
more money in a month.
Explanatory Variables
How much money spent on the
Stat 2225
Spring 2017
Assignment #1 [40 marks] (due Jan 19)
Show all the calculations. If you use SGC, please include the SGC result printout.
And please state clearly why you can apply CLT.
1.
[7 marks]
The National Association of Independence Colleges a
Stat 2225
Spring 2017
Assignment #2 (due Feb 06) (Total 57 marks)
(Note: Whenever the question is a hypothesis test question, you MUST include the
appropriate alternative hypothesis Ha)
1. [7 marks]
The Ministry of Transportation provides the number of ki
ECON 2298: Assignment 2
Due: Wednesday, February 1 by 12:30pm
Please note that this assignment will be marked for credible completion, not accuracy. You should
show all relevant work to receive credit. Solutions to the question will be made available afte
Causes of Happiness
Everyone has the right to pursue happiness. However, peoples understanding about
happiness differs. In some extreme cases, people even claim that they have no happiness in their
lives, but in almost all cases there is some. They simply
ECON 2298: Assignment 1
Due: Monday, January 23 by 12:30pm
Please note that this assignment will be marked for credible completion, not accuracy. You should
show all relevant work to receive credit. Solutions to the question will be made available after t
Summary of How to Get Happily Married
According to a recent book, women should understand who they are instead of
finding a husband when they are young. Women need to establish good female
friendships before getting married. Husbands cannot always be wome
Stat 1181 Notes: M16 Confidence Intervals or Interval Estimation
M16.LO1: Understand the reason of using interval estimation over point estimation.
M16.LO2: Understand the concept of certainty, accuracy and precision in relation to estimation and
confiden
Stat 1181 Notes: M15 Sampling Distribution of Statistics
M15.LO1: Understand the heuristic derivation and purpose of sampling distribution of statistics;
understand the difference between the probability distribution of random variables and sampling
distr