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A researcher conducts an experiment to test if a new type of fertilizer increases plant height. Group A (experimental) receives the new fertilizer, while Group B (control) receives a standard fertilizer. After six weeks, the average height of plants in Group A is 3 cm greater than in Group B. What is the most critical question the researcher must answer through statistical analysis before concluding the new fertilizer is more effective?
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A researcher conducts an experiment to test if a new type of fertilizer increases plant height. Group A (experimental) receives the new fertilizer, while Group B (control) receives a standard fertilizer. After six weeks, the average height of plants in Group A is 3 cm greater than in Group B. What is the most critical question the researcher must answer through statistical analysis before concluding the new fertilizer is more effective?
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