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Mathematics, 21.06.2021 16:50 morkitus13

Câu 2: Theo đánh giá về mức độ hài lòng về laptop cá nhân đang sử dụng của bài khảo sát Nhu cầu sử dụng laptop của 385 sinh viên tại HVCNBCVT cho kết quả như sau: ( rất không hài lòng 1-2-3-4-5 rất hài lòng ) Mức độ 1 2 3 4 5 Số lượng sinh viên 20 24 169 130 42 Hãy kiểm định ý kiến trên với mức ý nghĩa 0.05 ?

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