69. A department store has recently launched new sets of clothes. The store manager initially believes that each set of

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69 A Department Store Has Recently Launched New Sets Of Clothes The Store Manager Initially Believes That Each Set Of 1 (95.02 KiB) Viewed 10 times

69. A department store has recently launched new sets of clothes. The store manager initially believes that each set of clothes is preferred in equal proportions by its buyers. Within six months after the launching, the store manager surveyed buyers on their choices of clothes. The results were as follow: Set of Clothes Set A Set B Set C No. of Buyers 47 45 40 Set of Clothes Set D Set E Set F No. of Buyers 39 35 34 Untuk menguji sama ada terdapat perubahan dalam perkadaran pilihan pembeli dalam masa enam bulan selepas pelancaran pakaian baharu, hipotesis nol dan alternatif yang sesuai adalah A. Ho: PA PB = Pc = PD = PE = PF = 1.00 HA: Tidak semua perkadaran populasi adalah bersamaan dengan 1.00. B. Ho: PA PB = Pc = PD = PE = PF = 0.17 HA: Tidak semua perkadaran populasi adalah bersamaan dengan 0.17. C. Ho: PA = 0.47, PB = 0.45, pc = 0.40, PD = 0.39, PE = 0.35, PF = 0.34 HA: Tidak semua perkadaran populasi adalah bersamaan dengan nilai hipotesis mereka. D. Ho: PA + PB + Pc + PD + PE + PF = 1.00 HA: Tidak semua perkadaran populasi adalah bersamaan dengan nilai hipotesis mereka.
SULIT/CONFIDENTIAL 70. 71. 72. Apakah perkadaran bagi pembeli yang mengutamakan pakaian dari Set B? A. 16.25% B. 16.67% C. 18.75% D. 19.58% What is the proportion of buyers who prefer clothes from Set B? A. 16.25% B. 16.67% C. 18.75% D. 19.58% Kira darjah kebebasan bagi ujian ketepatan padanan di atas. A. 5 B. 6 C. 7 D. 8 Calculate the degrees of freedom for the goodness-of-fit test above. A. 5 B. 6 C. 7 D. 8 Nilai statistik ujian bagi ujian ketepatan padanan di atas adalah A. x² = 3.40 B. x = 3.40 C. x² = 2.40 D. x² = 2.40 The value of the test statistic for the goodness-of-fit test above is A. x² = 3.40 B. x = 3.40 C v² = 240 BT10403