Question: Mode Multiple Choice Question The confidence interval for the difference between two population means when the population standard deviations are unknown and assumed equal is

Mode Multiple Choice Question The confidence interval for the difference between two population means when the population standard deviations are unknown and assumed equal is Multiple choice question. d t/1,df sdn (x 1 - x2 ) t/2,df s12n1+s22n2 (x 1 - x2 ) z/2 12n1+22n2 (x 1 - x2 ) t/2,df sp2(1n1+1n2)

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