Mathematics, 03.07.2021 02:50 Yoma321

Satu sampel 200 pelajar statistik mendapat markah seperti dalam jadual di bawah. Taburan markah pada tahun-tahun sebelumnya adalah seperti berikut: 14% A, 26%B, 31%C, 19%D dan 10%F. Gunakan aras keertian 0.05 untuk menguji sama ada taburan markah telah berubah secara signifikan daripada tahun-tahun sebelum ini.

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Satu sampel 200 pelajar statistik mendapat markah seperti dalam jadual di bawah. Taburan markah pada...

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