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Kate Wants to Compare Two Means

Question 86

Multiple Choice

Kate wants to compare two means.Her sample statistics were 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 1 = 22.7,s12 = 5.4,n1 = 9 and 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 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

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