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GD2212 - Hitung Perataan I B. Setyadji, Mei 2007Uji Hipotesa untuk Nilai Menengah Populasi, µBisa dilakukan uji satu ekor (one-tailed test) maupun uji dua ekor(two-tailed test)one-tailed testtwo-tailed testHipotesa nol H 0 : µ = ¯x H 0 : µ = ¯xH alternatif H a : µ > ¯x(µ < ¯x) H a : µ ≠ ¯xUji statistikt = ¯x−µS/ √ nDaerah penolakan t > t α (atau t < t α ) |t| > t α/2Contoh: Suatu garis basis (baseline) yang dikalibrasi berjarak 400.008 m(= µ) diukur berulang dengan EDM. Dari 20 kali pengukuran diperoleh nilai– Typeset by FoilTEX – 16

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