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Mathematics

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Twenty students in class A and 20 students in class B were asked how many hours they took to prepare for an exam.

Twenty students in class A and 20 students in class B were asked how many hours they took to prepare for an exam. class=

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goodingrdpaqt23 goodingrdpaqt23

Today at 11:12 PM

the mean study time is less for class b then class a

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