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Openai/691718ed-7ba4-8006-96d5-a66e0d9678fe
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==== - p≈0.206>0.05p \approx 0.206 > 0.05p≈0.206>0.05 → 沒有足夠證據拒絕虛無假設。 ==== * 也就是說，520 vs. 480 這個差異統計上可能只是隨機。 ✅ 重點：p 值的計算流程就是 # 設定 H0H_0H0（用二項分布建模）。 # 算出觀察值的 Z 分數。 # 用標準常態分布算出「比觀察值更極端的機率」。 要不要我幫你實際用 Python/Excel 算一次 精確二項檢定 的 p 值（而不是近似），給你比較看看？
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