Assignment for stats

Question 1
Marks: 6
One of the many concerns of college students today is the time required for them to graduate with a baccalaureate degree (BA or BS). Current estimates in the California public university system is that takes an average of slightly over 5 years for a student to complete a baccalaureate degree. One researcher suggests that males take a significantly longer average time than females to complete a baccalaureate degree. What is the correct hypotheses to test in an attempt to support the claim of this researcher? Let represent the average time it takes females to complete a baccalaureate degree in the California public university system, and let represent the average time it takes males to complete a baccalaureate degree in the California public university system.
Choose one answer.
A.
B. H0:μ1 = μ2 and H0:μ1 < μ2
C.
D.
E. None of the above
Question 2
Marks: 6
In the situation of Problem 1 above, suppose that two independent random samples from approximately normal distributions were taken from recent college graduates of the California public university system. As...