Experimental Design
What effects our ability to get a good result?
How do we assess an Estimator?
Sample Size
Sample size determination based on the confidence interval
Confidence Interval for Mean
Calculation of Sample Size
Example
Comment
Use of Statistical Power
Set of possible outcomes of a test
Possible errors
Statistical Power
Determination of C
Decision Rule and Power
Calculation of Power
Shape of Power Function
What affects the power of a test?
Power expressed as a function of standardised error.
Determination of n
Example of Power plotted against ?1 for different n
MINITAB
Week 7
Email: e.j.redfern@leeds.ac.uk
Home Page: http://www.amsta.leeds.ac.uk/~edwin