Do business seniors at your school prepare for class more than, less than, or about the same as business seniors at other schools? The National Survey of Student Engagement (NSSE) found that business seniors spent a mean of 14 hours per week preparing for class. (Source: A Fresh Look at Student Engagement Annual Results 2013, available at bit. ly/1j3Ob7N.) 

a. State the null and alternative hypotheses to try to prove that the mean number of hours preparing for class by business ­seniors at your school is different from the 14 hour per week ­benchmark reported by the NSSE. 

b. What is a Type I error for your test?

c. What is a Type II error for your test?