Does the location of your seat in a classroom play a role in attendance or grade

Question

Does the location of your seat in a classroom play a role in attendance or grade? 1600 students in a physics course were randomly assigned to one of four groups. The 400 students in group 1 sat 0 to 4 meters from the front of the class, the 400 students in group 2 sat 4 to 6.5 meters from the front, the 400 students in group 3 sat 6.5 to 9 meters from the front, and the 400 students in group 4 sat 9 to 12 meters from the front. Complete parts (a) through (c). Use the Tech Help button for further assistance. For the first half of the semester, the attendance for the whole class averaged 76%. So, if there is no effect due to seat location, we would expect 76% of students in each group to attend. The data show the attendance history for each group. How many students in each group attended, on average? Is there a significant difference among the groups in attendance patterns?

Explanation / Answer

As there are 400 students in each group, then the attendances are

first group: 0.77*400 = 308 [ANSWER]
second group: 0.77*400 = 308 [ANSWER]
third group: 0.77*400 = 300 [ANSWER]
fourth group: 0.77*400 = 300 [ANSWER]

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