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Statistik (Statistik Deskriptif (Organising, Summarising Data, Collecting,…
Statistik
Statistik Deskriptif
Organising
Summarising Data
Collecting
Presenting Data
Statistik Inferens
Determining Relationships
Hypothesis Testing
Making Inference
Making Predictions
Populations
frequently very large; sometimes infinite.
the group of all items of interest to a statistics practitioner.
Sample
A set of data drawn from the population.
Potentially large, but less than the population
Measurement Scale
Parametric (quantitative data)
Ratio
ordered, meaningful/equal differences between units, natural zero
(time, temperature,dollars)
Interval
ordered, meaningful/equal differences between units, no natural zero (temperature in Celcius,IQ)
Nonparametric (qualitative data)
Ordinal
ordered, meaningless differences between units, customer survey,attitudes (Likert Scale)
Nominal
name-only, labels, not ordered (nationality, occupation, gender,
religion, category