Use the Following to Answer the Question(s) Below

question 19

Multiple Choice

Use the following to answer the question(s) below.
A sample of 30-year fixed mortgage rates at 12 randomly chosen credit unions yields a mean rate of 6.65 % and a sample standard deviation of 0.39%. A sample of 30-year fixed mortgage rates at 16 randomly selected banks yields a mean rate of 7.05% and a sample standard deviation of 0.22%. Are the mean rates different between credit unions and banks? Relevant output is shown below.
-Which of the following is true?

• A) This is a paired t-test.
• B) This is a test for two means from independent samples.
• C) This is a one-tailed test.
• D) This is a paired design and one-tailed t-test.
• E) This is a pooled t-test.

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Definitions:

Napoleon

Napoleon Bonaparte, a French military leader and emperor who rose to prominence during the French Revolution and significantly altered European political landscapes.

Egypt

A country in North Africa, known for its ancient civilization, the Nile River, pyramids, and pharaonic monuments, with a rich cultural heritage and significant historical influence.

British Interests

The economic, political, cultural, or military objectives and concerns of the United Kingdom abroad or within international contexts.