Kate wants to compare two means.Her sample statistics were 1 = 22.7,s12 = 5.4,n1 = 9 and 2 =20.5,s22 = 3.6,n2 = 9 .Assuming equal variances,the pooled variance is
A)4.5
B)4.9
C)5.1
D)3.8

Question

Kate wants to compare two means.Her sample statistics were  1 = 22.7,s12 = 5.4,n1 = 9 and  2 =20.5,s22 = 3.6,n2 = 9 .Assuming equal variances,the pooled variance is
A)4.5 
B)4.9 
C)5.1 
D)3.8

Quizplus · Accepted Answer

The Answer of Kate wants to compare two means.Her sample statistics were  1 = 22.7,s12 = 5.4,n1 = 9 and  2 =20.5,s22 = 3.6,n2 = 9 .Assuming equal variances,the pooled variance is
A)4.5 
B)4.9 
C)5.1 
D)3.8

Kate Wants to Compare Two Means