You have an independent-measures study where your sample size for both treatment groups is n = 9. Your first treatment group has an SS = 546 and M = 80 and your second treatment group has an SS = 606...

You have an independent-measures study where your sample size for both treatment groups is n = 9. Your first treatment group has an SS = 546 and M = 80 and your second treatment group has an SS = 606 and M=72.

1. 
   
   
   
   1. 
      

      Calculate the pooled variance.

      
      
   
   
   2. 
      

      Calculate the estimated standard error.

      
      
   
   
   3. 
      

      If you are running a two-tailed test at the .05 level, do you have enough to reject the null hypothesis and conclude that there is a significant difference?