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1. Direktur sebuah software house di kota malang berkeinginan melakukan analisa data penjualan softwore corel drow. Anda sebagai ahli dibidang Statistika dan IT diminta oleh

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1. Direktur sebuah software house di kota malang berkeinginan melakukan analisa data penjualan softwore corel drow. Anda sebagai ahli dibidang Statistika dan IT diminta oleh Direktur Anda untuk melakukan analisa data. Sehingga anda mengambil sampel dari data transaksi penjualan software corel drow selama 40 bulan terakhir. Data yang digunakan mulai dari tahun 2015 sampai 2019. Data transaksi penjualan software corel drow disajikan dalam tabel data tunggal sebegai berikut. 432 449 444 457 425 442 440 453 453 447 435 479 438 426 468 463 446 465 454 419 458 448 436 447 440 442 440 453 453 447 435 473 446 462 445 452 444 450 464 438 Sedangkan jumlah populasinya tidak diketahui. Dengan tingkat kepercayaan 90%, lakukan penaksiran interval kepercayaan (confidence level) nilai rata-rata data transaksi penjualan software corel drow! (Gunakan Tabel Z)

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