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Question 1 of 10⏱ 08:00
Read the passage. "Lab notes, Day 14: Plot A received the new fertilizer; Plot B received water only. Both plots held twelve tomato seedlings and sat side by side in the same greenhouse bay. Plot A seedlings averaged 31 centimeters; Plot B averaged 24. Three Plot A seedlings showed yellowing leaves, which may indicate nutrient burn, and the cause has not been confirmed. Follow-up measurements are scheduled for Day 28." Which inference about the researcher's method is NOT supported by the notes?
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