1. The
94 students in a statistics class are categorized by gender and by the year in school.
The numbers obtained are displayed below:
Suppose we wish to test the null hypothesis that there is no ass
FACULTY OF SCIENCE
Department of Mathematics and Statistics
Statistics 213
Introduction to Statistics I
(see Course Descriptions for the applicable academic year: http:/www.ucalgary.ca/pubs/calendar/)
www.stat.ufl.edu/~ssaha/3024.html
STA 3024
Sec 0751
Ch 9
CHAPTER 9 ANALYSIS OF TWO-WAY TABLES
In Chapter 12 (One-Way ANOVA) we learned how to study the effect of a categorical factor (X) on a quantita
Analysis of Variance
In this set of notes we review the single factor one-way ANOVA, revisit the single factor
randomized block design, look at the Tukey Kramer multiple comparisons method,
and study
Exam 2 Review Problems:
1. What does the following equation represent? yi 0 1 xi
a) The Simple Linear Regression Model
b) The least-squares regression equation
c) The relationship between x and y in o
Hypothesis testing homework solutions
Setting up and interpreting results of a hypothesis test
ACT-1. Practice with p-values
Use the density tool to practice finding p-values.
I. Set the mean to 35, t
Page 1
A BRIEF INTRODUCTION TO MINITAB STATISTICAL SOFTWARE
Carl Lee
To start Minitab
Go to Start Menu Choose Programs Go to Minitab 12, and click on Minitab to open the program.
Minitab consists of f
Stat 217 Review Solutions
!1
1.
a. Ho: = 1100
Ha: < 1100
b. Reject Ho if Zcalc ! -1.645 (you can use Z because df=259)
c. Zcalc = -2.69
Dec: Reject Ho, -2.69<-1.645
Conclusion: At the 5% significance
Hypothesis Testing for Linear Regression 1
4.2: Hypothesis Testing for Linear Regression
Textbook: 11.1, 11.2, 11.3, 11.5
Objectives
Be able to conduct a hypothesis test for the population regression
Units 1 - 3 Practice Problems
Here are several additional practice problems from Unit 1, Unit 2, and Unit 3. The problems are
in no particular order. These problems will not be graded, so you dont nee
1)
2)
3)
4)
a) Four?
b) Between three and nine, inclusive
5)
6)
7)
8)
9)
10)
11) a)
b)
c) Given that a store has a $75,000 advertising budget, predict the sales for this store using
your model
d) Inte
hi
Faculty of Science
DEPARTMENT OF MATHEMATICS AND STATISTICS
Course Information Sheet
1. STAT 213 - Introduction to Statistics I - Winter, 2013
Lecture Days Time Location Instructor
Office
Phone
Ema
Changes to Average/SD
1. Suppose we know incomes for a group of employees.
Sum of incomes
i.e. average income =
# of employees
Suppose each employee gets a $100 increase, what is the new average?
Inco
Statistics 213
Worksheet 7
From records for adult body temperatures (oC) measured prior to voluntary surgery, a
sample of 108 records found a mean of 36.39 oC and a SD, s of 0.62 oC.
We want
to find C
Not only do we not need the number of heads to equal the number of tails in the long,
run, but we can, in fact, be almost certain that they will not be equal.
eg.
2 tosses, prob. #heads = # tails:
1
1
Statistics 213
Worksheet 8
1. The average time to perform a task in a manufacturing process is assumed to be 15
seconds. For a group of new employees the employee representative thinks this is not
eno
Statistics 213
Worksheet 6
1. An article in a magazine stated that 10% of people are left handed. Suppose in a
certain group of 10 people 1 is left-handed (i.e. 9 are right handed). From the 10
people
Statistics 213
Worksheet 5
1. How many arrangements (permutations) of the letters of the word bookkeeping is
possible? (Write in factorial form.)
2. There is a group of 30 individuals from which a jur
Summary - Experiments, Observational Studies and Samples
Controlled Experiments
Statisticians use the method of comparison. They want to know the effect of the treatment (e.g. the
Salk vaccine) on a r