A random survey asked two samples of 100 high school students how much time they spend on homework each night. A 4-column table with 2 rows. Column 1 has entries Sample 1, Sample 2. Column 2 is labeled 0 to 30 minutes with entries 38, 41. Column 3 is labeled 31 to 60 minutes with entries 42, 36, Column 4 is labeled 61 to 90 minutes with entries 20, 23. Which inference is true?
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