As a student, you probably have noticed a curious phenomenon. In every class, there are some students who zip through exams and turn in their papers while everyone else is still on page 1. Other students cling to their exams and continue working until the very last minute. Have you ever wondered what grades these students get? Are the students who finish first the best in the class or are they simply conceding failure? To answer this question, we carefully observed a recent exam and recorded the amount of time each student spent working and the grade each student received. Is there a relationship between the two? a. Create a scatter plot of the data & Calculate r and r2 b. Report results in APA style & What do results mean? Time Grade 44 94 60 76 40 89 57 92 52 81 45 88 M = 49.67 M = 86.67 SS = 313.33 SS = 235.33
As a student, you probably have noticed a curious phenomenon. In every class, there are some students who zip through exams and turn in their papers while everyone else is still on page 1. Other students cling to their exams and continue working until the very last minute. Have you ever wondered what grades these students get? Are the students who finish first the best in the class or are they simply conceding failure? To answer this question, we carefully observed a recent exam and recorded the amount of time each student spent working and the grade each student received. Is there a relationship between the two?
a. Create a
b. Report results in APA style & What do results mean?
|
Time |
Grade |
|
44 |
94 |
|
60 |
76 |
|
40 |
89 |
|
57 |
92 |
|
52 |
81 |
|
45 |
88 |
|
M = 49.67 |
M = 86.67 |
|
SS = 313.33 |
SS = 235.33 |
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