Statistical Design of Experiments
Statistical Design of Experiments
Statistical Design of Experiments
Statistical Design of Experiments
To say the grass seed types produce
To say the grass seed types produce
different average growth rates when they
different average growth rates when they
don’t
don’t
Example of Type I & Type II
Example of Type I & Type II
Error
Error
For Example
For Example
H
H
O
O
:
:
The average grass seed growth is the
The average grass seed growth is the
same for both seed types
same for both seed types
H
H
A
A
:
:
The average grass seed growth is not the
The average grass seed growth is not the
same for both seed types
same for both seed types
What is the Type I
What is the Type I
error?error?
error?error?
Don’t say the grass seed types produce
Don’t say the grass seed types produce
different average growth rates when they
different average growth rates when they
do
do
What is the Type II
What is the Type II
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