A Study Is Trying to Estimate the Difference Between the Annual

question 1

Essay

A study is trying to estimate the difference between the annual salaries paid to female and male employees working for the same large company. They take a random sample of 50 females and find that their average annual salary is $75 600 with a variance of $²1 250. They take a random sample of 50 males and find that their average annual salary is $78 500 with a variance of $²2 500. Find and interpret a 95% confidence interval for the difference in annual salaries for female and male employees of this large company.

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Definitions:

Ventricles

The two lower chambers of the heart that receive blood from the atria and pump it into the arteries.

Fluid Retention

The accumulation of excess fluid in the body's tissues, causing swelling commonly known as edema.

Swelling

The enlargement of a body part due to the accumulation of fluid in tissues, often as a response to injury or inflammation.

Aorta

The largest artery in the body, transporting oxygen-rich blood from the left ventricle of the heart to various parts of the body.