The problem is to investigate the relationship between the number of hours students' study for a statistics exam and the grades they get for that exam. The following table shows sample data from six students who were randomly chosen. STUDE NT HOURS OF STUDY EXAM GRADE 1 3 86 64432 23456 79 78 528398 A. Answer b and c below using the formulas. a. Which variable is the dependent variable? Which variable is the independent variable? b.Determine the coefficient of Correlation and interpret it. c.Determine the regression equation by estimating the slope and the intercept d. Also provide the interpretation of your slope and intercept estimates B. Obtain Excel printout using the given data information and answer the following questions based on the Excel printout a. Present the coefficient of determination and interpret it. b. What is the value of the coefficient of non-determination in this example c. Conduct a t test at 5% level of significance to find if there is a significant positive relationship between the hours of study and exam grade