All semester long you have decided that the Sapling HW is not a high priority for you. This unit you have decided to see if it makes a difference. You convince nine other friends to do the same. You all plan to compare results on this quiz where you have completed all of the Sapling HW with results of the Unit 6 Quiz where all of you decided to forget about the Sapling HW to see if the Sapling HW improved your quiz scores. Each of you will compare this through taking this quiz grade and subtracting your Unit 6 quiz grade to come up with the differences. After this you will find the mean difference. What would be the appropriate hypotheses for this study?