n1=15 s1=1.68

n2=10 s2=2.89

se= Sqrt(S^2pooled(1/15+1/10)=Sqrt(4.9862*.1667)= .91

S^2 pooled=[(n1-1)s1^2 +(n2-1)s2^2]/n1+n2-2

=(14*1.68^2+9*2.89^2)/23=4.9862

Secure Information

Content will be erased after question is completed.

Enter the email address associated with your account, and we will email you a link to reset your password.

Forgot your password?

Sign Up