Math Problem Statement
Seorang peneliti ingin mengetahui apakah data hasil ujian matematika dari sekelompok siswa mengikuti distribusi normal. Berikut adalah data nilai ujian matematika dari 20 siswa: 72, 85, 78, 91, 73, 88, 94, 77, 69, 80, 85, 90, 76, 82, 84, 79, 88, 92, 81, 75. Lakukan uji normalitas menggunakan Uji KolmogorovSmirnov (K-S) dengan taraf signifikansi 0,05.
Solution
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Math Problem Analysis
Mathematical Concepts
Normal distribution
Kolmogorov-Smirnov test
Statistical hypothesis testing
Formulas
Mean calculation
Standard deviation calculation
Theorems
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Suitable Grade Level
Undergraduate level
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