問答題

【計算題】某試樣中待測組分的質(zhì)量分數(shù)經(jīng)4次測定,結(jié)果為30.49%,30.52%,30.60%,30.12%。問應(yīng)該怎樣報告分析結(jié)果?(P = 0.90)

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