Note: regression line is Y = b0+b1X
Test if the regression line is significant
SPSS Output
P-value =0.01<0.05,
i.e. the regression line is significant
b0 b1
i.e.: regression line is Y = 98.248+0.110X
Please note that
this number is 0.110
20

CGE23202 Tutorial Exercise 9
CGE23202
Exercise 9:
Quantitative Reasoning and Applications
One-way ANOVA
Name: _
Student No.:_
Use SPSS to answer the following questions:
Question 1
The data in the file ALLOY.sav represent the lifetime of four different al

CGE23202 Tutorial Exercise 10
CGE23202 Quantitative Reasoning and Applications
Exercise 10: Chi-Square Tests
Name: _
Student No.:_
Use SPSS to answer to the following questions:
(Note: First, create a SPSS file using the steps on page 6 to page 9 of the n

CGE23202 Tutorial Exercise 7
CGE23202
Exercise 7:
Quantitative Reasoning and Applications
One Sample t-test for mean with unknown
Name: _
Student No.:_
Use SPSS to answer the following questions:
Question 1
A bank branch located in a commercial district o

CGE23202 Tutorial Exercise 8
CGE23202
Exercise 8:
Quantitative Reasoning and Applications
Two Sample t-tests
Name: _
Student No.:_
Use SPSS to answer the following questions:
Question 1
A problem with a telephone line that prevents a customer from receivi

CGE23202
Quantitative Reasoning and Applications
Lecture Seven
Hypothesis Testing about with unknown
One Sample t-test
1
Review: What is a Hypothesis?
A hypothesis is a theory,
guess or assumption about a
population parameter:
population mean
Example: The

CGE23202
Quantitative Reasoning and Applications
Lecture Five
Normal Distributions and
Sampling Distributions
1
Why Study Normal Distribution
A. They describe a pattern for the distribution of
measurements often investigated in statistics. Many
data distr

CGE23202
Quantitative Reasoning and Applications
Lecture Six
Hypothesis Testing about with known
One Sample Z-test
1
What is Hypothesis Testing
Hypothesis:
A theory, guess or assumption. In Statistics we
make hypotheses about unknown population
parameters

CGE23202
Quantitative Reasoning and Applications
Lecture Eight
Hypothesis Testing of two means 1 and 2
Two Sample t-tests
1
Two-Sample Tests
Two-Sample Tests
Population
Means,
Independent
Samples
Examples:
Population 1 vs.
independent
Population 2
Means,

CGE23202
Quantitative Reasoning and Applications
Lecture Nine
Testing Difference among 3 or more means
One-way ANOVA
1
General ANOVA Setting
ANOVA=analysis of variance
Investigator controls one or more independent
variables
Observe effects on the dependen