Thanks. I appreciate your information and the SAS/IML function. I tried the function for different sample sizes to check the effect on the results. ... View more

Thank you very much. Both methods work. ... View more

Thank you. ... View more

You are right.  I also did study and understood the results correctly.  I switched to  lsmeans option as those results are more clear to me. I used same options as you mentioned in addition to cl just to check CL values.  My problem is now solved. By the way, (Pr>F) = 0.0393 was from another example in which I had the similar problem. Thanks for all the explanation. ... View more

Thank you for your volunteering suggestion. I'm growing in my knowledge like your precious suggestions. pls keep in touch... ... View more