STAT 211
Handout 8
(Chapter 8: Tests of Hypotheses Based on a Single Sample)
A hypothesis is a claim or statement either about the value of a single population characteristic or
about the values of several population characteristics.
Statistical testing i
C31
Midterm: Stat 2060
March 2, 2017
Name : _;glg.L'l_'l_QQS_ _ Student ID: _
1. In each of the following situations, state whether or not the given assignment of probabil
ities to individual outcomes is legitimate, that is. satises the rules of probabili
Bachelor of Commerce Co-operative Education
Student Handbook
2012/2013
Important Notices
Recent changes or updates to policies will be shown on the website version.
Students are advised that the matters dealt with in this handbook are subject to continuin
BUS 3613, Business Statistics
Test 3, Spring 2010
150 points
This is a closed book, closed note test, and should be your work only. You may use
a calculator as well as the provided formula sheet and tables during this exam. Stay
calm, read all of the inst
Comm 2801 - Co-op Work Term I Winter 2017 - Page 1
Comm2801
Co-op Work Term I
Winter 2017
Instructor:
Office:
Telephone:
E-mail
Office Hours:
Course Website:
Professor Kathleen Wooden
4089 Rowe Building
902 494 - 4319
[email protected]
Tuesdays and T
Career Goal
As an international student, my final career goal is to become an entrepreneur in the
international trade area. However anyone want to be an excellent entrepreneur must
experience the multiple business position. I will focus on marketing and f
Appendix E Development Progress Report
To be completed by the 15th day of the 3rd month of the work term
Step 1 Bring forward five priority skills from Appendices D and C
Step 2 Recap the SMART Goal from Appendix D.
Step 3 Agree with your supervisor as to
Appendix C Skill / Competency Profile
To be completed prior to the 15th day of the 2nd month of the work term.
Step 1 Based on the Job Description for your first work term, place a checkmark next to each skill / competency that
Step 2
Step 3
you expect wi
Eric Dodge
Page 1
ea3bebfbca310734d46422c9f6fbbdca2eb7ede0.doc
5/9/2017
NAME:
You may use additional sheets of paper to solve the following questions, but you please report your
results and conclusions in the space provided. Whenever possible, show your w
Final
1. (30%)
For the following data,
xi
0
1
yi
2
4
suppose the model
1
3
2003. 6. 20
2
5
3
6
3
7
yi 0 1 xi i , i 1, ,6, i ~ N 0, 2 .
(a) Find the least square estimate and the fitted regression equation
(b) Provide an ANOVA table and use t statistic to
Practice Problems for Exam2
Paraphrased problems from EMBS.
30. (p 484) A large auto insurance company selected random samples of single and married male policyholders and recorded the number who made a claim over the preceding three-year period.
Single M
About 28% of private companies are owned by women (The Cincinnati Enquirer, January
26, 2006). Answer the following questions based on a sample of 240 private companies.
a. Show the sampling distribution of p-bar, the sample proportion of companies that a
STAT1060 Notes 1
Quantitative data
Chapters 3-4
Jan 12
Main points
- Displaying ans summarizing quantitative data
- Numerical measures:
o Measures of location: mean, median, mode and quartiles
o Measures of spread: range, interquartile range, variance, an
Stat 2060 - Joint Probability Distribution
Lecture Notes Chapter 5
Dr. Ammar Sarhan
Department of Mathematics & Statistics,
Dalhousie University
November 2, 2016
Dr. Ammar Sarhan
Joint Probability Distribution
November 2, 2016
1 / 24
5.1 Joint distributio
Introduction to Probability and
Statistics
Chapter 7
Ammar M. Sarhan,
[email protected]
Department of Mathematics and Statistics,
Dalhousie University
Chapter 7
Statistical Intervals
Based on a
Single Sample
Dr. Ammar Sarhan
2
Confidence Intervals
A
Org behaviour
Lecture 1
The difference between the word involuntary change and voluntary change
Definition and more difficult
When does the human use which
Low emotional intelligence vs high emotional intelligence
Define ei
How do you handle stress and cr
Life on the Front Line
From the ED's Desk
Brian Slous (M.A.C.S.)
Major
Executive Director
It is said in Canada that we have two
seasons: "winter" and "construction". This is
certainly the case in some of our colder
climates, but outside our own doors we s
Welcome to Word
6 tips for a simpler way to work
Quick access to commands
At the top of your document, the Quick Access Toolbar puts the commands you use frequently
just one click away.
If the commands currently shown arent quite what you need, customize
QUESTION 1
Suppose that the waiting time until a bus arrives at a bus stop has a
uniform distribution on the interval 0 and 30 minutes. What is the probability that you will have to wait 20 minutes or more for the bus?
QUESTION 2
6. A multiple choice exam
Discrete Distribution
Discrete Random Variables: ,uX = pr(x). a; = 2(x — ,LiX)2 p(x) = 2x3 p(x) — “if, (7X 2 OX
(Note: population mean and variance VS the sample mean and sample variance; counting rules)
Binomial Distribution BIN(n,p1:
H I
x:0,1,2,.,n; (F
Data exploration for one sample
Histogam: Class: [(1, b), a = lower class boundary (LCB), b = upper class boundary ( UCB)
Class Width: CW: UCB - LCB or CW: distance between successive midpoints
LCB I UCB
Class Midpoint: mi : —; LCB m; — 0.5(CW), UCB
Sampling Distribution and Inference
Distribution of the Sample Mean X :
Given: Independent identically distributed random variables XL, X2. . X»- with mean in and
standard deviation 0' [i.e. a random sample of size n from a population with mean y and
st
Stat 1060 - Formulae Sheet
Descriptive Statistics: Given a SRS X1 , X2 , , Xn ,
1. Sample mean:
n
i=1
X=
Xi
n
.
2. Sample variance:
2
S =
n
i=1
Xi X
n1
2
n
i=1
2
or S =
3. Sample standard deviation: S =
Xi2 n(X)2
or S 2 =
n1
n
i=1
Xi2
(
n
i=1
2
Xi )
n
n1
Math and Stat Department
Dalhousie University
Stat 1060
Formula Sheet and Tables Booklet
Do not write anything on this booklet
Stat 1060 - Formulae Sheet
Descriptive Statistics: Give a SRS X1 , X2 , , Xn ,
1. Sample mean:
n
X=
i=1
Xi
n
.
2. Sample varianc
ECON 3339
Assignment 1
Due on February 3, 2015
Total points 20.
Show your work. When testing a hypothesis, please state the null and alternative
hypotheses and explain what distribution is used for critical values and p-values.
1. (3 points)
In any year,