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Metode Statistik/Sats4121 Manager salah suatu hotel bintang 5 di Bandung ingin menduga berapa rata-rata seorang tamu hotel menghabiskan uangnya untuk makan malam di restoran hotel.

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Metode Statistik/Sats4121

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Manager salah suatu hotel bintang 5 di Bandung ingin menduga berapa rata-rata seorang tamu hotel menghabiskan uangnya untuk makan malam di restoran hotel. Untuk maksud tersebut diambil secara acak 81 orang tamu hotel. Diperoleh deviasi standar sampel sebesar S 5 dan mean sampel sebesar S127. Hitunglah a. Interval kepercayaan untuk mean pengeluarannya b. lakukan analisis berdasarkan interval kepercayaan yang diperoleh

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