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The role of statistics. Identifikasi, Pemilihan, Perumusan Masalah Landasan Teori (Kajian Teori dan Penelitian yang Relevan) Penyusunan Kerangka Berpikir.

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Presentasi berjudul: "The role of statistics. Identifikasi, Pemilihan, Perumusan Masalah Landasan Teori (Kajian Teori dan Penelitian yang Relevan) Penyusunan Kerangka Berpikir."— Transcript presentasi:

1 The role of statistics

2 Identifikasi, Pemilihan, Perumusan Masalah Landasan Teori (Kajian Teori dan Penelitian yang Relevan) Penyusunan Kerangka Berpikir Perumusan Hipotesis Penelitian Pengujian Hipotesis Penelitian (Pengumpulandan Analisis Data) Hipotesis Diterima? ya tidak SCIENTIFIC METHOD CYCLE DEDUKSI INDUKSI The role of statistics

3 Statistics Statistics is the science of collecting, organizing, and drawing conclusion about a universe (population) based on a subset of the universe (sample) Descriptive statistics: collecting and presenting data Inferential statistics: drawing conclusion about population based on sample data

4 Population and sample POPULATION Population is a set of units that we are interested in studying sample Sample is a subset of a population sample We do some calculations on sample data (data analysing) The results of sample data calculations are brought back to the population Make an inference (generalization)

5 Variable Variable: a property whereby the members of a group differ one from another Constant: a property whereby the members of a group does not vary one to another

6 Type of variable Nominal variable (classification) Ordinal variable (classification, ordering) Interval variable (classification, ordering, unit of measurement) Ratio variable (classification, ordering, unit of measurement, an absolute zero)


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