Given the Following Information About a Hypothesis Test of the Difference

question 30

Multiple Choice

Given the following information about a hypothesis test of the difference between two means based on independent random samples,which one of the following is the correct rejection region at a significance level of .05?
H_A: ?_A > ?_B, $\bar { X } _ { 1 } = 12$
$\bar { X } _ { 2 } = 9$
S₁ = 4,s₂ = 2,n₁ = 13,n₂ = 10.

• A)Reject H₀ if t > 1.96
• B)Reject H₀ if t > 1.645
• C)Reject H₀ if t > 1.721
• D)Reject H₀ if t > 2.08
• E)Reject H₀ if t > 1.782

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Definitions:

Packed Red Blood Cells (RBCs)

Concentrated red blood cells separated from plasma, used for transfusions to treat anemia or blood loss.

Blood Infuse

The process of transferring blood or blood products directly into a person's bloodstream, commonly known as a blood transfusion.

Infusion Completion

The point at which a liquid medication or nutrient solution has been fully delivered into the patient's bloodstream via intravenous therapy.

IV Fluid

A solution administered directly into the veins to supply essential fluids, electrolytes, and nutrients.