Research Methodology and Statistical Data Analysis Quiz

What is the lowest level of measurement scale?

• Nominal Scale

• Ordinal Scale

• Interval Scale

• Ratio Scale

Which scale ranks data to show greater or lesser values?

• Ratio Scale

• Interval Scale

• Ordinal Scale

• Nominal Scale

What does the interval scale add to the nominal and ordinal scales?

• Categorization of data

• Equal distance between data points

• Absolute zero point

• Ranking of data

Which of the following is NOT a measure of central tendency?

• Standard Deviation

• Median

• Mean

• Mode

What is the purpose of descriptive statistics?

• To make predictions about a population

• To describe the population/sample being studied

• To test hypotheses

• To analyze relationships between variables

Which graphical presentation method is commonly used to display frequency distribution?

• Bar graph

• Pictogram

• Line diagram

• Scatter diagram

What does a negatively skewed distribution indicate?

• Symmetrical distribution

• No skewness

• Longer tail on the left

• Longer tail on the right

What is the p-value in inferential statistics?

• The mode of the data

• The median of the population

• The mean of the sample

• The level of statistical significance

Which test is used to measure the difference of means between two independent groups?

• t-Test

• Chi-Square Test

• ANOVA

• Regression Analysis

What is the purpose of data cleaning?

• To analyze the data

• To present the data

• To collect new data

• To check for errors and completeness