Hi @plssssshelp 
 
It seems that you want to conduct a one-way ANOVA power analysis. Is that right?
In this case you can use the keyword 'onewayanova'.
NB: you need to specify an option to be designated as the result.
E.g. if you're looking at power, specify power=.
Best,
proc power;
	onewayanova
	test=overall
	groupmeans=37 | 35 | 28
	stddev=4.5 
	groupweights=(1 1 1)
	ntotal=24
	power=.
	;
run;