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Metode Statistik/Sats4121 Sebuah perusahaan peralatan olahraga mengembangkan jenis batang pancing sintetik, yang dikatakan mempunvai kekuatan dengan rata-rata 8.5 kg dan deviasi standar 0,5 kg. bila

Metode Statistik/Sats4121

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Sebuah perusahaan peralatan olahraga mengembangkan jenis batang pancing sintetik, yang dikatakan mempunvai kekuatan dengan rata-rata 8.5 kg dan deviasi standar 0,5 kg. bila sampel random yang digunakan sebanyak 20 batang pancing, apakah rata-rata kekuatan batang pancing sama dengan 8 kg? gunakan taraf signifikansi a = 5%

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