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A teacher is experimenting with computer-based instruction. In which situation could theteacher use a hypothesis...

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A teacher is experimenting with computer-based instruction. In which situation could theteacher use a hypothesis test for a population mean?A. She gives each student a pretest. Then she teaches a lesson using a computer program. Afterwards, shegives each student a posttest. The teacher wants to see if the difference in scores will show an improvement.B. She randomly divides the class into two groups. One group receives computer-based instruction. Theother group receives traditional instruction without computers. After instruction, each student has to solve asingle problem. The teachers wants to compare the proportion of each group who can solve the problem.C. The teacher uses a combination of traditional methods and computer-based instruction. She asks studentsif they liked computer-based instruction. She wants to determine if the majority prefer the computer-basedinstruction.

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