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A research assistant randomly selected 75 undergraduate students from
the list of all students enrolled in the psychology-degree program at a
large university. She asked each of the 75 students, “How many minutes
per day do you typically spend reading?” The mean reading time in the
sample was 89 minutes, and the margin of error for this estimate was
4.28 minutes. Another research assistant intends to replicate the survey
and will attempt to get a smaller margin of error. Which of the
following samples will most likely result in a smaller margin of error
for the estimated mean time students in the psychology-degree program
read per day?

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