Stats Quiz

What is the discipline that concerns the collection, organization, analysis, interpretation, and presentation of data?

• Mathematics

• Statistics

• Economics

• Biology

Which distribution is used extensively in inferential statistics?

• Poisson distribution

• Binomial distribution

• Normal distribution

• Exponential distribution

What type of study involves manipulating the system and then taking additional measurements?

• Observational study

• Experimental study

• Longitudinal study

• Case study

Which type of statistics summarize data from a sample using indexes such as the mean or standard deviation?

• Descriptive statistics

• Inferential statistics

• Computational statistics

• Bayesian statistics

What is the term for the error when the null hypothesis is rejected when it is in fact true?

• Standard error

• Mean squared error

• Type II error

• Type I error

Which method is used for obtaining efficient estimators?

• Bayesian estimation

• Method of moments

• Maximum likelihood method

• Least squares method

What does a confidence interval provide?

• The mean of a sample

• An estimate of the range of values within which a population parameter lies

• The standard deviation of a sample

• The variance of a population

Who made major contributions to probabilistic methods leading to statistics?

• Albert Einstein

• Carl Friedrich Gauss

• Leonhard Euler

• Isaac Newton

What is the main goal of a statistical research project?

• To summarize data

• To describe phenomena

• To investigate causality

• To compute probabilities

Which scale of measurement allows for any rescaling transformation?

• Ratio scale

• Interval scale

• Ordinal scale

• Nominal scale