TABLE B-l. ESTIMATED STANDARD DEVIATIONS 



s - estimated standard deviation 

 c - from duplicate coupons 

 a - from angle-interactions, i. e. 

 d - from duplicate panels 



p - from panel-interactions, after removal of occasional, excessi\ 

 n - number of degrees of freedom for each estimate 

 e - number of values judged excessive 



B-4 



