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1.Assume that you have a sample of n 1= 8 , sample mean = 42 and a sample standard deviation of S 1= 10, and

1.Assume that you have a sample ofn1= 8 , sample mean = 42 and a sample standard deviation ofS1= 10, and you have an independent sample ofn2= 5 from another population with a sample mean = 34 and sample standard deviationS2= 8.

(a)What is the value of the pooled-variancet-test statistic?

(b)In finding the critical value of the test statistict, how many degrees of freedom are there?

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