In Order to Compare the Means of Two Populations, Independent

question 59

Essay

In order to compare the means of two populations, independent random samples of 144 observations are selected from each population with the following results. $\begin{array} { l l } \text {Sample 1}&\text {Sample 2}\\\bar { x } _ { 1 } = 7,123 & \bar { x } _ { 2 } = 6,957 \\s _ { 1 } = 175 & s _ { 2 } = 225\end{array}$ Use a 95% confidence interval to estimate the difference between the population means (μ1 - μ2). Interpret the confidence interval.

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Definitions:

Thrombus

A blood clot that forms in a blood vessel and remains there, which can block blood flow and cause health issues.

Pulmonary Embolism

A condition where one or more arteries in the lungs become blocked by a blood clot.

Embolus

A blood clot, air bubble, piece of fatty deposit, or other object that has been carried in the bloodstream to lodge in a vessel and cause an embolism.

Lymph

A clear fluid that circulates through the lymphatic system, containing white blood cells and playing a key role in the body's immune response.