Insulin binding capacity was measured for a sample of diabetic rats treated with a low dose...

Insulin binding capacity was measured for a sample of diabetic rats treated with a low dose of insulin and another sample of diabetic rats treated with a high dose of insulin, yielding the following sample statistics:

low dose: n1=11, Ybar1=1.37, S1=0.62

high dose: n2=13, Ybar2=1.05, S2=0.84

Means and standard deviations are in grams.

Consider the main t-test for population means

Ho: Mu1=Mu2. Ha: Mu1>Mu2. let alpha=0.05

a. Find the pooled test statistic t'. Find the P-value. Give the Critical Region. Make a decision about Ho.

b. Construct a 95% confidence interval for Mu1-Mu2.

Expert Solution

orchestra answered 2 years ago

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