please show all the steps and your work for the following question, by this i mean please show how did you get the answe

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please show all the steps and your work for thefollowing question, by this i mean please show how did you get theanswer step wise step, this is urgent thankyou.
Question 1- ) Lance wants to know if giving chocolates inclasses increases student motivation and therefore student grades.He uses a within subjects design of his PSYC 190 class and obtainsthe following scores (in %).
NoChocolate Chocolate
65 60
82 84
51 55
48 50
72 75
66 60
71 75
63 65
63 64
90 84