The Department of Statistics at Colorado State University

"Everything should be made as simple as possible, but not simpler." - Albert Einstein

Franklin A. Graybill Statistical Laboratory

	Sample Programs
	Power and sample size calculation programs:
	Notes		Notes on using the power and sample size calculation programs below.
	powerci1.sas		Calculates confidence interval width for one sample t intervals.
	powerci2.sas		Calculates confidence interval width for two sample t intervals.
	powert.sas		Calculates power for one sample (one-sided) t-tests.
	powertt.sas		Calculates power for one sample (two-sided) t-tests.
	powert2.sas		Calculates power for two sample (one-sided) t-tests.
	powertt2.sas		Calculates power for two sample (two-sided) t-tests.
	powchi2.sas		Estimates power for the Pearson Chi-square test of independence in two-way (r by c) tables.
	powreg.sas		Calculates power for one-sided t-tests for slope in simple linear regression.
	powregt.sas		Calculates power for two-sided t-tests for slope in simple linear regression.
	powercrd.sas		Calculates power for the F-test in a oneway completely randomized design .
	powercon.sas		Calculates power for the F-test for a contrast in a one-way completely randomized.
	powerrcb.sas		Calculates power for the F-test in a randomized complete block design.
	powertwo.sas		Calculates power for the F-tests in a two-factor experiment in a completely randomized design.
	powrmeas.sas		Calculates power for repeated measures and split plot .

	Other programs:
	Color hardcopy		Produces a landscape, color postscript graph which may be printed on the HP color deskjet printer.

** To download any of the above programs, simply select the program and then save it to a file using your browser.