A professor hypothesizes that students who earn a C or better in her class spend more time outside of class studying than students who receive a D or F. She collects the following data from two samples of students. What does she conclude?

Number of hours studying per week for C or better students: 8, 4, 4, 2, 1, 5, 3, 2, 3

Number of hours studying per week for D or F students: 6, 2, 1, 0, 3, 2, 1

A. What is the Null hypothesis:

B. What is the Alternative hypothesis:

C. What is the Statistical test :

D. What is the Significance level: alpha = .05

E. What is thedegrees of freedom:

F. What is the Critical region (t-value):

G. What is the Calculated t:

H. What is the Decision: