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

Question

A teacher is experimenting with computer-based instruction. In which situation could the
teacher 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, she
gives 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. The
other group receives traditional instruction without computers. After instruction, each student has to solve a
single 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 students
if they liked computer-based instruction. She wants to determine if the majority prefer the computer-based
instruction.

Kunduz · Accepted Answer

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