sample 70 c2 c3

Statistics c1;
By c3;			#uses the new randomized group assignments
GValues c5;		#stores the group names
Mean c6;			#stores the new group means
Variance c7.		#stores the new group variances

let c10(k1)=std(c6)*std(c6)/(mean(c7)/14)  #the F statistic
let k1=k1+1