Statistics Quiz

What is the main purpose of descriptive statistics?

• To generalize from samples to populations

• To summarize, organize, and simplify data

• To determine relationships among variables

• To make predictions

Which type of statistics makes assumptions about the entire population?

• Descriptive Statistics

• Non-Parametric Statistics

• Inferential Statistics

• Parametric Statistics

What is the characteristic that describes a population?

• Inference

• Statistic

• Parameter

• Sample

What is the lowest level of measurement?

• Interval Scale

• Nominal Scale

• Ratio Scale

• Ordinal Scale

What is the purpose of inferential statistics?

• To make predictions

• To determine relationships among variables

• To generalize from samples to populations

• To summarize, organize, and simplify data

Which statistical test does not require the population's distribution to be characterized by certain parameters?

• ANOVA

• Pearson's r

• Linear Regression

• Mann-Whitney U Test

What is the naturally occurring discrepancy between a sample statistic and the corresponding population parameter called?

• Margin of Error

• Sampling Error

• Standard Deviation

• Confidence Interval

Which scale has the characteristics of all the measures mentioned above plus an absolute value zero?

• Ratio Scale

• Interval Scale

• Ordinal Scale

• Nominal Scale

What is the set of all individuals of interest in a particular study called?

• Sample

• Statistic

• Parameter

• Population

Which measure determines the relative position of objects with respect to a characteristic without implying the distance between positions?

• Interval Scale

• Ordinal Scale

• Nominal Scale

• Ratio Scale