Use the Following to Answer the Question(s) Below

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.