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Hypothesis Test: Grades and Note Use

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A professor is wondering whether allowing students to use their notes during tests improves performance. She uses one of her classes as a control group and does not allow them to use their notes, and she allows her second class to use their notes while taking their exams. Below are the grades for each 12 person class. Is there a difference in grades due to being allowed to use notes?

Control Class Open Notes Class
78 90
72 88
76 87
74 85
60 65
90 65
55 97
72 92
87 87
86 73
73 86
62 85

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Solution Summary

The solution shows a detailed hypothesis test and conclusions.

Solution provided by:
Anwesha Ghosh, MSc
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  • MSc, Indian Institute of Technology - Roorkee (I.I.T.-ROORKEE)
  • BSc, Banaras Hindu University
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