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Question 22

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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. 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.   -At the 0.05 level of significance, the correct conclusion is A)  Reject the null hypothesis. B)  Do not reject the null hypothesis. C)  Evidence suggests that there is a significant difference in mean mortgage rates between credit unions and banks. D)  Reject the null hypothesis and evidence suggests that there is a significant difference in mean mortgage rates between credit unions and banks. E)  Do not reject the null hypothesis and evidence suggests that there is a significant difference in mean mortgage rates between credit unions and banks.
-At the 0.05 level of significance, the correct conclusion is


A) Reject the null hypothesis.
B) Do not reject the null hypothesis.
C) Evidence suggests that there is a significant difference in mean mortgage rates between credit unions and banks.
D) Reject the null hypothesis and evidence suggests that there is a significant difference in mean mortgage rates between credit unions and banks.
E) Do not reject the null hypothesis and evidence suggests that there is a significant difference in mean mortgage rates between credit unions and banks.

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