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Seorang guru ingin membandingkan pencapaian pelajarnya dengan pencapaian pelajar di daerahnya. Pencapaian pelajar yang dipilih secara rawak adalah 45, 26, 24, 37, 36, 31, 29,

Seorang guru ingin membandingkan pencapaian pelajarnya dengan pencapaian pelajar di daerahnya. Pencapaian pelajar yang dipilih secara rawak adalah 45, 26, 24, 37, 36, 31, 29, 40, 44 dan 39. Adakah terdapat perbezaan min skor pencapaian antara sampel dengan populasi sekiranya = 30

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