STF1093 LU1

Statistics is the study of how to collect, organize, analyze and interpret numerical information from data.

• TRUE

• FALSE

We use inference about population parameters to estimate the sample statistics.

• TRUE

• FALSE

Answer explanation

We use statistics from the samples we collect to make inference about population parameters.

Qualitative data represent categorical or attributive or classified information.

• TRUE

• FALSE

Quantitative variables are measured on an ordinal, interval, or ratio scale.

• TRUE

• FALSE

Discrete data refers to numerical values over an interval resulting from measurement process.

• TRUE

• FALSE

Answer explanation

Continuous data refers to numerical values over an interval resulting from measurement process.

Inferential statistics involves methods of organizing, picturing, and summarizing information from a sample of a population.

• TRUE

• FALSE

Answer explanation

Descriptive statistics involves methods of organizing, picturing, and summarizing information from a sample of a population.

Descriptive statistics involves methods of using information obtained from a sample of a populations to draw conclusion regarding the populations.

• TRUE

• FALSE

Answer explanation

Inferential statistics involves methods of using information obtained from a sample of a populations to draw conclusion regarding the populations.

Parametric tests does not require background information about the population distributions.

• TRUE

• FALSE

Non-parametric tests are useful when the data show a skewed distribution.

• TRUE

• FALSE

Qualitative variables are measured on a nominal scale.

• TRUE

• FALSE