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?

Question

ramen · Answer

Where are the following samples?

CocoCammron · Answer

one sec

CocoCammron · Answer

40 randomly selected undergraduate psychology-degree program students
B
40 randomly selected undergraduate students from all degree programs at the college
C
300 randomly selected undergraduate psychology-degree program students
D
300 randomly selected undergraduate students from all degree programs at the college

mxddi3 · Answer

mmk well you told me this is for the SATs, and the SATs are a type of test sooooo.

but the other question you had a minute ago said "view correct answers" at the bottom so.......

Mercury · Answer

Old question but will respond to help out future students.

Since the study is only looking at undergraduates from the psych degree program, the sample must only come from the undergraduate psych degree program

Also, larger sample size ---> smaller margin of error

Should be sufficient to narrow down to the correct choice