A reversal design is used to test the hypothesis that low lighting in a room reduces how quickly students read. As shown in the figure for one student, a student reads passages of similar length in a...

A reversal design is used to test the hypothesis that low lighting in a room reduces how quickly students read. As shown in the figure for one student, a student reads passages of similar length in a room with normal lighting (baseline), then in the same room with dim lighting (treatment), and then again with normal lighting. Do the results shown in the figure support the hypothesis? Explain.