Which inference is true?
A random survey asked two samples of 100 high school
students how much time they spend on homework each
night.
0-30 min 31-60 min 61-90 min
More students spend 0-30 minutes on homework
than spend 31-60 minutes.
More students spend 31-60 minutes on homework
than spend 0-30 minutes.
About the same number of students spend 0-30
minutes on homework as spend 31-60 minutes.
More students spend 61-90 minutes on homework
than spend 0-30 minutes.
Sample 1
| 38 | 42
| 20
Sample 2
41
36
1 23
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